Asia background bark china coconut palm texture tree tropical trunk branches debris logs river shoreline tree trunks trees Virginia wood bleached wood Bull Island dead tree driftwood tree trunk autumn branch nature season sky sunset vegetation detail palm trees rough shapes cut gap gaps pile x forest lake loch needles pine abstract appearance bumps close-up colors colours cut-branches dry edge edges gray grey grooves layers lines patterned patterns perspectives ridges shape shaped strange surface surfaced surfaces textured textures timber tree-trunk twisted uneven unusual variations varieties Africa animal bath bush cow elephant Mud tusk water