flake flaking old paint shutter wood bubbling corrugated roof rotting rust rusting texture Acer background bark natural nature peeling rough tree ball basket basketball flakes frozen snow snow flakes sports spotr winter december Poland snowing trees white wind beige brown decaying disintegrate disintegrating flaky light pale plaster worn door dried green lines painted panel wall christmas cold cristal design graphic ice icon illustration pattern red shape conifer cracked crevices orange pine stone abstract colour colourful colours crystal edge Fractal fractals math mathematic shapes sharp sundfractals theory wedges