abstract
age
backdrop
background
blue
circle
clearcut
closeup
cracks
crop
cut
deforestation
dried
environment
environmentalism
fence
fiber
flat
forest
forestry
grain
growth
horse
horseshoe
log
logging
luck
lumber
material
natural
nature
old
pattern
ranch
recycling
repetition
ridges
ring
round
sawed
shoe
sky
slice
structure
stump
texture
timber
time
trees
trunk
waste
weird
west
wood
wooden
yellow