Still don't know if he "neeeeeeds" it but since Irony is apparently my other specialty after Fluff and Bubble, and I want to actually be able to draw core features of my characters without going insane, I gotta do the study maaaan.

Overall I didn't want it to look like a simple log too much which it sorta does in my ref so far, and also noticed how it often looked forward instead of sideways on front views.
A little bit more triangle is probably the way to go making it fit better on natural standings poses. Actually swimming has felt difficult mainly because I want to actually show something... but really I think it is probably best to push it up a bit, and don't even draw any arm. Subsequently might want to lower it a tad on land even though that varies a little on references (and at least when he actually has enough arm to do so.)
Lastly I'm still keepin the screw off needle valve, whether it's realistic or not (gives a tad bit of that personal resourcefulness over factory formed look) instead of the classic pull-tab.

And one last whole inflatable Gator bonus just for you!