Acer autumn color colour countryside England english fall forest Great Britain leaf leaves maple natural nature rural shadow sunlight Sussex trees veins woodland abstract appearance Australian background bare bark branches brown colors colours contours cream edges gnarled layers lines Melaleuca mottled paperbark paperbark tree shadows shapes shedding soft surface texture textured textures tree tree trunk trunk uneven variations wallpaper wood bank branch edge landscape margin moss northern pretty spring crop entrance farm field green meadow peace South Downs track uk united kingdom