abstract appearance background color colored colors colour coloured colours cracked cracks exterior external rough surface texture textured textures wall wallpaper blue uneven area asphalt backgrounds block blocks brick bricks building granite grey hard material moss pattern patterned patterns pavement repitation sideway square stone stones textural urban walkway walls black dark decay gloomy grunge grungy print urban decay winter wood wood print wood texture wooden wooden print brown construction design duotone grayscale natural plank planks sepia wooden texture wooden wall backdrop cold crystal crystals frost ice natural texture nature white acrylic acrylic paint art canvas close close up colorful drip latex paint painting