grainy painting of plaster. imitation of metal by large-drop staining of a bumpy surface.

aged artistic background blush brass bronze brown brushed bumpy chrome coloring copper corrosion cuprum dark decorative dirty ferrous finish foil glitter gold graininess grainy granularity gray grunge imitation iron largedrop mechanic metal metalization metallic non old painting patina patination pattern plaster retro rusty scratch sequins shabby shine shiny staining surface texture textured tubercles venetian vintage wall worn