abstract appearance art-glass artistic artistry background blended bubbles bubbly color coloration colored colorful colors colour coloured colourful colours contrast craftsmanship curved curves decorative distinctive glass light lighting lines liquidy patterned patterns perspectives round rounded shaped shapes stained-glass style surface surfaces surfacing texture textured textures thick thin vibrant wallpaper window hinged hinges lens lenses panels architectural backdrop barrier brick brick-wall bricks brickwork cement coloring colouring constructed exterior external firm linear mortar perspective rectangular rough secure security smooth solid standard strength strong surfaced traditional-brick-wall variation varied various wall walled well-built bark bumps close-up cracked cracks curled curling curls dark dry edge edges gnarled gray grey grooves layers mottled peeling ridges shade shadows strips sunlight tree tree-trunk trunk uneven variations wood wrinkled wrinkles wrinkly