abstract
aged
backdrop
background
bark
beam
black
brown
circle
closeup
color
cracked
cross
cut
design
detail
environment
forest
grain
gray
grunge
line
log
macro
material
nature
old
organic
pattern
pine
plank
plant
protection
ring
rough
section
shape
skin
split
structure
stump
surface
texture
timber
tree
trunk
weathered
white
wood