beech trees fall foliage different shades of natural colors

abstract auburn autumn autumnal background beech below bottom-up brown change changing color coloration colored coloring colors colour coloured colouring colours densely environment european fall foliage forest forested german golden hued leafage leafy leaves lowangle moist natural nature october photosynthesis plants rustcolored rusty season seasonal summer texture time tree trees under upwardly vegetation view woodland woods deciduous shades