Painting over the past: a muralist on building through layers
In a narrow warehouse studio tucked behind a Brunswick café, painter Mira Hollow covers her own finished murals as calmly as if she were stirring a pot of tea. She has been layering pigment over completed work for almost a decade, building dense, sediment-like surfaces that hold years of colour, gesture, and erasure. Her walls do not look fresh. They look weathered by memory, even when the plaster underneath is still damp.
The conversation began in Melbourne, where Hollow completed her first major layered mural on a laneway wall and returned five months later to add a third coat. Friends questioned the logic. Critics praised the visual depth. Hollow spoke about something different: a quiet belief that a mural is not a single object but an evolving one, and a way of letting time remain visible on a surface that is usually forced to look finished.
For Mass Musings readers, her practice sits naturally beside wider explorations of craft, ritual, and personal history. The layered thinking found in ceremonial mask design feels close to the discipline of letting a work speak across multiple versions, and the comparison quietly frames everything that follows.
| Element | Single-Layer Mural Practice | Layered Practice |
|---|---|---|
| Completion | Considered finished when sealed | Stays open for years |
| Surface | Clean, controlled, often glossy | Textured, patched, history visible |
| Reading | Audience sees one moment | Audience reads through time |
| Maintenance | Restoration when damaged | Repainting as care |
| Risk of loss | Low — preserved as built | Moderate — earlier versions disappear |
The first stroke
Hollow's early murals were conventional. She graduated from a fine arts degree in Brisbane, spent two years assisting senior muralists on Sydney commissions, and completed her first solo wall in Newtown in 2016. That wall is gone now. The building was repainted by a new tenant. She takes no issue with this, but the disappearance sharpened something already nagging at her, a sense that a single painting session was too small a vessel for the kinds of stories she wanted a wall to hold.
She began layering by accident. A wall for a Footscray bakery was finished, signed, photographed, and then she returned two months later to soften a section that drew too much foot traffic. The repair absorbed the earlier colour, and the wall looked more interesting than the original. Hollow asked the owner if she could paint a small image on top of her repair. He said yes, and her practice quietly began from there.
Why the wall has to be covered
Hollow describes layering as an ethical act rather than a stylistic one. A finished mural, she says, becomes a still image very quickly. It is photographed, screenshotted, posted, and reduced to a flat document. The viewer stops looking. The wall, once a place, becomes a poster hung on the city.
By painting over a section, she forces both the wall and the audience back into the present. The new layer does not erase the old one completely. It interacts with it. Pigment bleeds through, edges remain visible, and the viewer who knew the earlier version sees the change. The viewer arriving later sees a unified, complex surface and reads it as a single composition.
Hollow compares the sensation to reading old letters layered under a recent one. You sense the previous handwriting, you guess at what was written, and you realise the document is not actually a single document. This is the feeling she wants on a street wall, and it grounds every later coat she applies.
The physical mechanics of painting over
Layering is harder than it sounds. Hollow works mostly in acrylic with occasional oil pass, and she keeps a notebook for every wall: pigment numbers, dates, weather conditions, the original sketch. When she returns, the new coat has to bond chemically with the older surface, or the patch peels within a season. Her sense of rhythm owes a debt to iteration guides, which she credits with sharpening her patience for the slow, repeated work of layering.
She prepares each wall before painting. Glossy sections need a fine sanding, and any wax residue from street signage is removed with a solvent wipe. The cleanest returns, she says, are when the existing coat is matte and lightly cured, never sealed with varnish she cannot later break through.
Practical anchors she returns to
- Translucent mid-tones first, never full opacity, so the previous image still registers through the new coat.
- Two passes of soft brushwork, then a sharper passage to re-establish focus on a single element.
- Photographing at midday before adding pigment, because raking light reveals what flat light hides.
- Touching the wall with the back of her hand, reading temperature and dryness by feel rather than by guess.
Colour palettes that refuse to disappear
Some colours refuse to disappear quietly. Whites laid over warm earth tones produce an unsettling bruise that reads as a mistake, even when deliberate. Cadmium reds behave well under blues. Phthalo greens go sour underneath warm yellows. She has built a quiet library of combinations that survive Melbourne's coastal damp and Brisbane's harsher sun, and she rarely reaches for pigments not already proven in her notebooks.
Colour choices are rarely aesthetic. They are technical. If a pigment cannot hold its hue under a second coat, it stays in the bottom layer, never the top. She treats colour the way a long-distance cook treats spice, choosing what disappears first and what lasts longest.
Pigment behaviour she plans around
- Cadmium red holds cleanly under phthalo blues but loses punch under naphtol reds in the second layer.
- Yellow oxide disappears gracefully under most whites and is her preferred ground tone for portrait work.
- Prussian blue darkens underneath warm overlays and is reserved for the deepest base layers only.
Working on Australian walls
Australia offers Hollow particular conditions. UV light, especially in Adelaide's dry summers and Perth's coastal glare, breaks down some pigments faster than her European or North American influences expected. She chooses outdoor-grade acrylics with extra UV stabilisers and accepts that every wall will fade unpredictably. This suits her layered thinking, since each painting over is partly a response to decay she could not have predicted.
She has painted in Sydney's inner west, on Brisbane Powerhouse-adjacent facades, in Hobart's Salamanca precinct, and between Cairns and Townsville on regional water-pump stations invited by local councils. Melbourne's laneways tolerate dense layering. Brisbane commissions lean brighter and more figurative. Hobart gives her long unhurried surfaces with less foot traffic. She returns to youth-heavy neighbourhoods more often and leaves breathing time between coats in quieter regional walls.
Local custom matters. Many Australian councils require heritage approvals for murals over twelve metres, and Hollow works with these regulations rather than around them. Her practice, she says, accepts that a wall belongs to a place first, and that the artist's intervention has to feel welcome rather than imposed.
How viewers read a painted-over surface
The most common reaction, Hollow reports, is confusion. People ask whether the wall was damaged, whether she ran out of money, whether the council asked for changes. Once she explains, most respond with curiosity. Children read layered walls almost instantly, spotting hidden figures more readily than adults do. Her posture here echoes the patient ethnographic note-taking she admires in other observational practices.
A handful of commissioned clients have refused the practice outright. Hollow does not push back. She keeps a list of clients willing to accept unpredictability and a separate list of those who want a clean final image. The willingness of small hospitality venues in Collingwood and Surry Hills to embrace the layered look has allowed her to remain economically viable without compromising her principles, and that quiet patronage matters more to her than any single commission.
What the layering reveals about time
At its core, Hollow's layered muralism is a philosophy of time rather than a technique. She believes that a public artwork should carry evidence of its own duration, the way a stone wall carries lichen or a wooden door carries scratches. By painting over her own completed walls, she insists that her work is alive in a place, not merely decorating it.
She calls her later visits "revisitings" and keeps a parallel archive of every earlier version, photographed and dated in a steel cabinet in her Brunswick studio. Nothing is truly lost. The earlier mural exists as a record; the painted-over mural exists as a surface. Both belong to the same wall, and that quiet shared belonging is what Hollow says she is painting toward.