closeup of birch tree trunk with cracked bark surface overgrown with thick green moss. birch tree with bare branches with grey sky

abstract aged autumn backdrop background bark berlin birch branch branches brown closeup covered cracked cracks cross cut damaged deep defocused detail dirty dry environment fall foreground forest germany gray green ground grove grunge landscape logs lot lumber lush macro moss mushrooms natural nature old park pattern pile plant retro rough sawed scratched season section shape skin small streetlights structure stump surface texture textured timber tree trunk trunks weathered wood wooden wrinkled wrinkles