vibrant autumn landscape collage art with mountains depicting a picturesque scene of a lone tree with red leaves standing on a

autumn landscape collage art mountains tree red leaves golden grass hill yellow sky minimalist nature fall season vibrant colors peaceful serene tranquility simple elegant abstract modern contemporary graphic design digital fine poster print canvas wall home decor artwork painting background wallpaper element creative aesthetic inspiration foliage hour sunrise sunset sun light depicting picturesque scene lone standing grassy backdrop grey