backdrop background colour colours element grain hues natural rustic series shades surface texture textures timber tones variations wood wooden climb climbing diamond garden green paint pattern plant support trellis wall back barrier board door fence gate outside wallpaper weathered yard carve cut flat pile plank planks tile tree abstract ocre painted shape shapes stripes structure structures symmetric triangle triangles triangular white yellow craft decorative diagonal handcraft handicraft nails old square struchture turquoise used worn gap gaps handsaw nature power saw sawdust trees trunk batten gnarl knag knur selvage slat vein