base building concrete concrete-pad concrete-pour concrete-work concreting construction edged edging fill filling flat flatten flattening form forming foundation foundational gray grey level leveled leveling levelled levelling mix mixed poured preparation prepared preparing rough smooth smoothing solid solidify spread spreading strength strong sunlight surface surfaces textures tools wet work working abstract appearance backgrounds bare bark brown bumps close-up colors colours cracked cracks dead dry edge edges gnarled grooves layers lines moss mottled patterns peeling ridges shades of colour shapes strips Stump texture textured tree Tree Stump tree trunk trunk uneven variations wallpaper wood