I desperately want goats!! I raise myotonic (fainting) goats in real life and I just adore them. I really want some for this site.
I also agree on the owls, ducks and geese. We need some Muscovy ducks with their caruncles. I also really like the sparrow and finches. I'd like to see more wild birds like cardinals, blue jays, mockingbirds, etc. also eagles and hawks.
Another one that comes to mine are the Betta fish. I love that line art so much!
For dogs I really want more realistic breeds. My favorites are Siberian Huskies, GSDs, Papillons and Beagles.
But mostly goats lol.