abstract art background blue circle design floral flourish flower graphics leaf plant red stripes swirl tree vector wallpaper yellow curves nature spiral spring summer white background black wave white bronze egypt isolated lantern metal rustical sea spirals street lamp street light streetlight swirls versus sky black and white dark graphic grunge illustration scrapbooking seamless texture tile vortex warp warped wire bright carnival cheerful concentric concept element fill layers paint purple round vivid water waves