art background curves design flourish graphics green grid leaf nature plant spiral spring summer swirl tree vector wallpaper white background yellow blue christmas crystal ball decorations holiday mountains snow snowflakes snowman bow Easter egg floral flower grass melody music note score song stripe treble clef black branches frame grunge text place autumn birch fall foliage forest golden HDR landscape leafs looser tree populati maple pine shining spruce sunset trees vivid banner border branch copy-space drawing fresh illustration leaves lush painted beach cloud clouds coast coastline horizon Nyberg ocean rock rocks sand sea sky stone stones water wave waves winter