adult
amphibian
animal
aquatic
back
big
biology
black
black and white
book
bufo
bulging eyes
cane
character
colored
contoured
detailed
drawing
drawn
engraving
etching
forest
frog
graphic
green
hand drawn
handdrawn
illustration
isolated
large
line
nature
outline
realistic
reptile
retro
sketch
style
summer
swamp
toad
vertebrate
vintage
water
white
white background
wild
wildlife
zoology