abstract angles appearance architectural architecture background brown building color colors colour colours contrast contrasting corrosion corrugated corrugations dark decay deterioration elements external metal old perspectives rough rust rusty surfaces textures uneven variations wall wearing weathering art artistic arty backdrop blended blue clouds colored coloured decoration decorative design detailed edges geometric geometrical image images interconnected intermeshed interwoven light lines ocean patterns rays reflection reflections sky style surface texture vibrancy vibrant wallpaper water waves coloring colouring conglomerate contours contrasts cracks fissures flaws grit gritty layered layers levels mica natural rock rock-face rockface rocky rugged shade shadows shape shapes silicate stone strata stratum sunlight sunny sunshine textured veins