abstract appearance art-glass artistic artistry background blended blue bright circle circular coloration colored colorful colors coloured colourful colours contrast craftsmanship dark decorative distinctive glass light lighting multicolored multicoloured patterned patterns perspectives round rounded shaped shapes stained-glass style surface surfaces surfacing texture textured textures thick thin vibrant wallpaper window bark color colour cork cork tree exterior external impervious layers resistant shadows soft sunlight sunshine tree trunk useful bad barrier bars black cage checks design décor elegant fill floor geometric interiors net pattern scrapbooking screen seamless squares tile wall white chaos complexity computer generated digital Fractal graphic illustration infinity mandelbrot mathematics repetition science self-similar self-similarity spiral technology angles blowing blue sky branches breeze common focus foliage fronds leaves movement palm palm tree silhouette sun symmetrical wind liquidy raised surfaced tactile curved curves elephant lines blocks rectangles rectangular walled