abstract architectural backdrop background barrier basic brick brick-wall bricks brickwork cement colored coloring colors coloured colouring colours constructed exterior external firm linear lines mortar perspective perspectives secure security smooth solid standard strength strong style surface surfaced surfaces texture textured textures traditional-brick-wall variation varied various wall walled wallpaper well-built appearance conglomerate contours contrast contrasts cracks fissures flaws grit gritty layered layers levels light natural red reddish-brown rock rock-face rockface rocky rough rugged shade shadows shape shaped shapes stone strata stratum sunlight sunny sunshine veins art-glass artistic artistry blue bright color coloration colour dark decorative design details distinctive edges geometric geometrical glass glassy interconnected interlinked patterned patterns stained-glass symmetrical symmetry thick thin vibrant window yellow beam board decoration desktop facade grey lumber ornamental ornamented ornaments plank planks regular structure structures tile tiles timber wood wooden balks colorful colourful faded horizontal old orange painted pastel used washed out weathered worn