abstract appearance backdrop background cracked cracks creased creases grained grains gray grey light lines palm-bark palm-tree palm-trunk texture textured textures timber trunk uneven wood wood-grain wood-textures wooden bark garled gnarly root tree book cover journal leather notebook page paper parchment scrapbook template desktop forest green leaf leafs natural nature plant trees blue colours desktpo flowers metallic red rgb shape aged decay iron metal rust rusted rusting rusty steel surface architecture basis classic cloister column columns element elements saavem stone blinds curtain horizontal pattern shade tile vertical wallpaper window windows