abstract
abstraction
art
artistic
asymetry
asymmetric
asymmetry
black
bw
colorless
contemporary
contrast
density
dynamic
dynamism
fade
geometric
gradient
graphic
grayscale
greyscale
illustration
intersecting
irregular
lines
misc
miscellaneous
modern
monochrome
monocrome
pattern
random
simple
sparse
square
straight
streaks
stripes
texture
thin
uncolored
vertical
white