Body round 6 should read:
(2sc, Inc, sc, inc); then 4sc, inc around (49)

Body round 7 should read:
(2sc, inc); then sc around (50)

I think… that’s what got me to the right number of stitches in each round, anyway. Otherwise I ended up with waaaaay too many.

Had trouble working out how the face should look a little, I don’t know these critters too well ;D
Had better luck adding features at the end, though safety eyes weren’t an option by then - it might be worth a picture of where to place features before stuffing, and also put instructions for the mouth before those for the body in the pattern - I skimmed the pattern before I started but missed that I needed the mouth completed before the body! Oops

Also, I think I should have stuffed the tail, it looks more like a whale XD I shall try again…