birch birch forest birch tree forest haunted forest nature protective area recreation area spring spring forest tree wood woodland autumn bark brush bushes coppice copse covered dark forest deep forest fall fern foliage impermeable magic magic forest magical misty thicket trees trunks wood land art background backgrounds black branch cartoon dark dead decoration design evil fantasy fear frightening ghost gothic graphic grunge halloween haunted holiday illustration illustrations landscape looking up plant scary scene scrapbooking season shadow silhouette sky spooky stark vector