abstract appearance architectural architecture background basic brick brick-wall bricks color colored colors colour coloured colours exterior external hole rough smooth solid standard strength surface surfaces texture textured textures uneven variation varied various wall wallpaper art artwork blue bright collage contrasting covered dark decorated decoration decorative filtered filters firm ornamental paint painted painting patterned patterns perspectives photomontage pink secure shapes Sizes walls angles building cracks paving clinging clinging creeper cover covering creeper curl curling foliage granite wall green leaves vine communicating communication concrete convenience direction door gender-specific indication ladies narrow public public-conveniences rocks sign thick thin toilet wc women wood wooden backdrop barrier brickwork cement coloring colouring constructed corner corner-wall fixed linear lines merger merging mixed mortar perspective repaired security strong style surfaced builders construction-work holes hollow rectangular walled