Murals from 25 sq ft to 250 sq ft are usually complete within 4-7 days. Larger murals can take anywhere from 2 to 4 weeks. High levels of detail can increase the time and cost of your project.
For the base coat and larger areas of color I use Benjamin Moore Aura latex paints. Some of the reasons I love this paint:
I use Montana spray paints and golden acrylics for detailing. I also offer non toxic water based spray paints for indoor projects upon request.
If the wall is in poor condition, I will subcontract to a commercial painter to fix the cracks, fill holes, and to apply a primer and deep base coat color.
For new construction, a smooth finish, level 4 is ideal. A primer and base coat should be painted on the wall before the mural work begins.
If it is an existing wall and the wall is in good condition, no special preparation is required.
I can paint on a rough texture surface, but it does affect the artwork. In many situations the texture can enhance the artwork; a rough surface allows for interesting textures and layering. If the mural will be viewed up close, and has a high level of linear details, you might consider either re-plastering the wall or having the mural painted on panels.
I usually begin by thinking about the space as a whole: the angle/s the wall will be seen from, who uses the space, and the "feeling" you want to bring to the space. The imagery we create, the use of color, dynamic form, and subject are designed to fit your specfic space and audience.