aspen aspens autumn bright colorado fall foliage golden leaf leaves tree trees turn yellow abstract art background blue collage color colour concept creation design effect fill graphic grunge hi res illustration image impressionism nature New original paint paper pastel pink pretty purple rough scrapbooking shadow soft spring style summer texture unique vector vivid wave branch green limb brown covered dead dry floor forest trunks wood woodland biology bush Common Hazel flower hazel plant floral flourish graphics white background fresh hanging natural pendant Salix suspended weeping willow branches England english Great Britain lime linden Sussex Tilia trunk young black wallpaper