autumn bark bird birdhouse colors colours fall house leaves ontario rural tree trees trunk wood autumnal branch branches eu galcia isolate isolated Lugo nature outeiro rei sky Spain vegetation abstract backgrounds bare brown bumps close-up contrast cracked cracks dark dry edge edges gnarled gray grey grooves layers lines mottled patterns perspectives ridges rough shade shades-of-colour shadows shapes strips sunlight surface surfaces texture textured textures tree-trunk uneven variations varieties wallpaper wrinkled wrinkles wrinkly England english field grass Great Britain green landscape meadow oak Quercus spring Sussex woodland hedge winter grassland Natural landscape Surrey Australian bush-tucker central-Australia cork corkbark corkwood corkwood-tree food hakea hakea-eyreana medicinal straggly-corkbark tangle twisted