the background wall surface is cement.

39aph39 abstract aged antique architecture art asphalt backdrop background badlands bedrock black block boulder brick brickwork brown built cement concrete construction design detail dirty element floor flooring formation geology gradient graphic gray grey ground grunge grungy masonry material messy mistake natural nature old path pattern pavement retro rock rough rugged s sand soil stone stonewall surface technician terrain texture urban vintage wadi wall wallpaper weathered wood