abstract
aging
background
bark
brown
circle
closeup
concentric
construction
cracked
cross
cut
dead
forest
grunge
grungy
history
industry
life
log
lumber
natural
nature
old
organic
part
pattern
pine
plank
plant
ring
saw
section
shape
slice
striped
structure
stump
surface
texture
textured
timber
tree
trunk
weathered
wood
wooden
years
yellow