abstract architecture background blue brown city decay details door grunge grungy home house old paint peel plank texture urban wall wood breakwater defence harbour marina metal posts protect rust sea shelter stone sunny water architectural barrier basic brick brick-wall bricks brickwork building building-material colored coloring colors coloured colouring colours composite constructed distinctive exterior external firm linear lines mortar perspective perspectives rectangles rough secure security solid standard strength strong style surface surfaces symmetry textured textures uneven varied various angles appearance arm basket cherry-picker color colour danger dangerous elevated elevation equipment features Harness height heights high machinery orange painter painting raised raised-platform risks risky safety safety-colours safety-harness up-high walls white work workman cemented concrete local-stone pattern patterns picturesque random randomly-coursed rock rocks shape shapes significant stone-walled stones stonework stucco traditional variations variety well-built contours contrast contrasts cracks fissures flaws garden-wall layers levels light natural rock-face rockface rugged shades-of-color shades-of-colour shaped strata stratum veins wallpaper