abstract artistic backdrop background blended colored colorful colors coloured colourful colours contrasting decorative design details edges fabric geometric gray grey in-out interconnected interlinked intermeshed light lines mesh multicolored multicoloured patterns perspectives rectangles sequential shaped shapes style surface surfaces symmetrical symmetry texture textured textures under-over vibrant visual-arts wallpaper weave woven architectural artwork barrier blocks coloring colouring exterior external firm fitted large layered layers linear mortar painting porous rock rock-wall rough rugged sandstone secure sedimentary-rock shade shadows solid stone stonework strength strong sunlight sunshine uneven variations wall weathered weathering well-built brick brick-wall bricks brickwork cement constructed dark perspective security smooth standard surfaced traditional-brick-wall variation varied various walled basic