Looks cool - what if the bullets were fed in coming from over the shoulders? A little smoke pouring out of the barrels and have piles of shells on the ground making a type of rock formation (you know like the standard walrus pic but on pile of spent shells instead of rocks).
Not sure about the Boba Fett antenna’s as they make the head area too large, maybe WWII Navy Mark IV gas mask style instead.
I like the armor plated flippers a lot but I don't know if having 6 of them would look better than just the regular 2 as you want it to be recognized as a walrus still right? The wings look out of place unless they are exhaust pipes then they could look great.
Not trying to sound like a dick with the comments but that's the standard feedback I would give for charaters at work
