I love finding good, simplistic images of animals, especially on labels like these. As someone who can't really paint (my secret is out!!) I try to look for the most simplistic route by which to draw something, and then work up from there to eventually painting it. What gives a fish it's "fishness"? What gives a rooster it's "roosterness"? When I'm drawing, I try to look for that as a starting point and go from there.