angle angles appearance bark colored coloring colors coloured colouring colours crack cracked cracks cut cuts droplets excrete excretions exposed grooved grooves lopped orange perspectives protective reaction response rough sap sawn secrete secretions sticky Stump surface surfaces texture textures timber tree tree-stump trunk uneven wood wooden brick bricks brickwall brickwalls building construction half-timbering house mortar old stones sundbricks tile wall brown crevice dark forest green light macro moss nature pine shadow skin trees abstract art background bleach closeup color crackle design dry grunge paint yellow bare black close-up edge edges gray grey layers lines mottled peeling shadows shapes sunlight textured tree trunk variations wallpaper backdrop bench board boards copy lumber natural plank planks playground red sand sandbox space blue benches concrete recreation bio close effect grow growth mark mold organic score split UP zoom