abstract appearance backgrounds bark brown bumps close-up colors colours cracks edge edges layers patterns ridges rough shades of colour smooth strips surface surfaces texture textured textures tree tree trunk trunk uneven variations wallpaper wood bare dark dry grain gray grey grooves hard-wood lines lumber patterned perspectives shade shades-of-colour shadows shape shaped shapes surfaced timber tree-trunk twisted varieties wood-grain wrinkled wrinkles wrinkly abandon abandoned agricultural ancient antique architecture backdrop background barn battered black building copy copyspace crack cracked damage damaged decay decayed derelict dereliction design dirty door down effect element exterior farm grunge grungy house old outside paint peeled peeling retro run rural rust rusty scratch scratched space structure wall weather weathered weirdvis white wooden yellow Australian melaleuca rhaphiophylla melaleucas myrtaceae paper-like paperbark peel useful