abstract appearance background bare bark black brown close-up colors colours cracked cracks dry edge edges gray grey grooves layers lines mottled peeling rough shadows shapes sunlight surface texture textured textures tree tree trunk trunk uneven variations wallpaper wood Australian eucalypt eucalypts smooth tree-trunk white abundance abundant berries bracts clusters drupes endocarps flowers foliage fronds fruit fruitful inflorescences leaf stalks leaves light mesocarp palm palm tree perspectives petioles plentiful pods productive seed-bearing fruits seeds sprays variety various backgrounds bumps grain hard-wood lumber patterns ridges shades-of-colour surfaces timber varieties wood-grain