Nah, it's clearly a female... unless I wanted a baby sea lion...What's this?.... no elephants? LOL
Looks like a nice start there...are you going to add seamen as well ( small joke)
You might be right..I'm not sureJust had a look at a few of them on Google, seems if it's an adult it should be fatter along the back and longer from the fins to the tail
Maybe a bit chubbier in the chest too