This is an idea I had to do small references for Trevor along various ages, which also helps me develop him a bit at these ages. This also is sort of a practice in drawing him consistently, which I think I've managed to work out a nice style for him. I particularly like the 3rd drawing and think it's one of my best so far.

At his youngest ages he is completely vulnerable and dependent on others to take care of him. He can do some basic things like feed myself and attempt to dress himself, but he doesn't have the best control over his body and can be pretty messy. In addition, he has absolutely no control over his functions (although he can at least control #2 at the 3-ish age) and needs to wear diapers all the time. He's still aware of himself as an adult, but he finds it harder to resist cub urges.