abstract angles architectural backdrop background barrier black colored coloring colors coloured colouring colours concrete constructed exterior external firm green linear lines modern mortar patterned patterns perspective perspectives secure security smooth solid standard strength strong style surface surfaced surfaces texture textured textures variation varied various wall walled wallpaper well-built appearance art-glass artistic artistry blended bright color coloration colour contrast craftsmanship decorative distinctive glass glassy light lighting multi-colored Multi-Coloured shaped shapes stained-glass surfacing thick thin vibrant window blank bowl bubbles bubbling circular details edges edging effects foam foaming froth frothing frothy interconnected interlinked liquid merging mirroring red round rounded shape small Tension variations water art artwork caterpillar-like coiling coils colorful colourful contrasting design distinct edged modern-art motion movement multiple pink strands variety white wriggly connected connections contoured contours fiery interlaced intermeshed interwoven multicoloured paint painted painting swirling swirls winged yellow angled blending Designs flow flowing gold golden lined metallic panel ripples rippling rows tiles undulating waves wavy arch arching architecture brick-walls bricks brickwork formation heritage historic Historic site kiln kilns lime-kilns park patched patchwork repairs rock rock-work rocks rubble ruins shadows stone stone-wall stone-work stones structure sunlight walls blue-green geometric geometrical mini-swirls spiral spiraling tactile diagonals squares straight striped stripes checkered checks column columns matrix mosaic row square squared