abstract background blue blue background blue lines blue waves curved lines curves dessin plastic structure style surface texture wave waves wavy wavy line wavy texture brown close driftwood fiber fibre filament firewood lines log plank timber vintage wood wood wood lines wood structure wood texture woodgrain backround textures backdrop canvas fabric fill green knit material space weave metal silver special abstraction grunge vertical stripes orange graphic sea sea background water 1059405 lake reflection ripples isolated marbled pattern rock sedimentary strata bumps composite copy space gritty layer rough