abstract flower art Colorfulness colours electric blue fractal art green light plant psychedelic art red symmetry abstract backdrop background blue concept curves futuristic graphic render ripples scrapbooking speed texture vector water waves bacteria bacterium blur bubbles hi-res lava microbe navy orange wallpaper festive free gradient illustration image pastel photo soft stars stationery stock stripes decay design gray grungy natural stone texture. grunge urban black concrete dark gothic grunge winter cold ice pattern