abstract angles appearance backdrop background backgrounds barrier blocks coloring colors colouring colours constructed fitted large limestone linear lines mortar perspective perspectives rock rock-face rockface rough secure security solid stone stones stonework strength strong surface surfaces texture textures variations variety wall walled well-built blended checks color colored colorful colour coloured colourful curled curved curves decorative design details green interconnected interlinked interwoven light lined linked links mosaic patterns shape shaped shapes style textured thick thin vibrant wallpaper weave woven pointed points shadows squares tiles detailed purple sharp blue bright coloration contrast distinctive lighting multicolored multicoloured patterned pink question-mark rounded surfacing dark emerald glass glassy interlaced intertwined kaleidoscopic mandala raised symmetrical symmetry tactile circles circular round brilliant circle petals dots dotted geometric geometrical lace lacy piping stripes striping yellow