abstract appearance background bare bark cambodian close-up colors colours cracked dry edge edges lines mottled pitted rough shapes smooth sunlight surface surfaces texture textured textures tree tree-trunk trunk uneven variations wallpaper wood 3D alien blue cells cellular computer graphic concept creation design fill flowing graphic green image microscopic New organic original render sci-fi science fiction silver style swirl unique vector virtual worlds backdrop cascade cascading color colored colour coloured drops patterned patterns rocks solid spray stone stone wall stones stonework varied water water-feature water-spray waterfall wet aging boards brown cracks damage damaged deteriorating fading gray grey maintenance old paint painted peeling peeling-paint structure upkeep wall weathered weathered-boards wooden woodwork worn arrows binary blueprint brochure cogs computerized copyspace digital digits direction engineering gears high-tech illustration industrial industry machinery mechanical mechanics modern motion report cover technical technology template wheels work