abstract age aged aging background beam character crack cracked cut decay detail expression face feeling forest fun happy laugh line message mood natural nature old pattern ring shape smile stem striped structure Stump surface symbol texture textured timber tree trunk weathered wood wooden years appearance appearances blocks child-care children's-toys color coloration colored colorful colors colour coloured colourful colours connecting fit fitting foam-rubber games learning mixed mix’n-match playing-blocks puzzles shaped shapes soft sponge-rubber tactile textures touch touching toys variations variety art-glass black blank clear contrast decorative distinctive door fixture glass light lighting panels panes patterned patterning patterns perspectives raised rectangles rectangular squares stained-glass style surfaced surfaces surfacing vibrant wallpaper window angles artistic backdrop blended bright circles circular corners design details geometric geometrical interconnected intermeshed interwoven kaleidoscopic patterns lines mandala pointed points radiating rays rounded Australian bare bark brown close-up cracks dry edge edges eucalypt eucalypts gray grey grooves layers mosaic mottled peeling rough self-shedding shadows shedding smooth sunlight tree-trunk uneven