abstract backdrop backgrounds cement concrete construction masonry patterns rough surface textures wall wallpaper appearance black brown cocofiber cocofibre coiled coils coir design doormat fiber fibers fibre fibres firm inlaid pattern inlay mat material materials pattern rubber weave woven architecture art background element elements glass glass tiles regular squared squares structure structures texture tiles translucent window windows yellow city colorized colors cracked decay grunge grungy paint painted urban alone atmposphere blue bright clouded clouds dark formation formations frozen heaven impressive large meteorology nature shape shapes single sky wheather white winter bark colours contours cracks edges gnarled layered layers lines mottled patterned shadows shaped soft strips sunlight surfaces surfacing textured tree tree-trunk trunk uneven variations wood