I have painted on black mostly. This is acrylic fluoro, mixed from pigments powders painted on black. No framework, it simply drawn on studio floor and nailed on the studio wall for painting. When I had no studio I painting big ones in small space was possible with clever folding.
To paint large two sided backdrops we are currently planning a theatre stage kind of rigging system; a simple ceiling and floor beams with manual pulleys.
Credits for the _sane_ composition of this piece go mostly to co-operation with my colleague Samuli. It really is a pleasingly beautiful consensus, but I do still feel somehow more at home (or just stuck) with my own schizoid mind maps tho they may be hard to comprehend for others.