Mine is an illustration of a fictional superhero that I created for an illustration course at university. His name is Mus: a defender of all small mammals, mostly rodents, from an army of evil feral cats. He has hair and a cape of fur with hidden quills as in the Mexican Porcupine, the ability to glide as in a Southern Flying Squirrel, webbed gloves that allowed him to swim as a North American Beaver, strong feet like the Spring Hares, and a long tail as a Rat.
In honor of Godzilla V Kong I switched to a picture of King Kong from 2005, which was one of my favorite movies growing up. I remember when I first got the DVD on a Friday after school in spring, ah memories.
ChunkyMunky (An orangutan, making fun of the fact that ignorant zoo-goers call apes monkeys) Pengo- this could have two meanings, either pangolin or penguin, the former for my pfp -opus this also could have two meanings, either octopus or platypus, the later for my pfp And so my pfp now reflects my username, rather than having a sand tiger shark, as it always irks me when 'pygmy hippo' has a pfp of a 'blue headed vireo' or whatever
Cockroach? More likely a roach (Rutilus rutilus), not? Obviously cockroaches are products of the hybridation of these cyprinids with a male domestic poultry.
I now have the ultimate profile picture: an illustration of Hipporex amphibius done by me. This was made as a part of a speculative evolution project I'm working on.