abstract color colors colour colours forest nature psychedelic snow spruce tree trees winter beam biology botany cell cross-section culm haulm lime tree linden magnification microscope plant stalk autumn beech tree brown canopy fall high position huge large leafs November old orange above background bare bare-branches branches budding buds clouds contrast contrasting deciduous empty reaching-up silhouette skeletal sky spread spreading spring stark straggly tall tips tree-top natural pattern plank planks texture wood wood texture wooden texture countryside farm hill hills landscape light meadows october rual sun air blue cloud leaves magic purple skies special botanic botanical garden gardens green greenery leaf park parks plants alone branch grass lonely village wall wooden woods