Overall I wouldn't say it is bad like it's literally one level above Alan and it matches the max score I can get with leo, pretty decent for a shark just one level above Alan, which in my opinion still good, but not as good as his evolution. Remember on Alan's page it is said that many sharks bigger than Alan all out classes him? Imo Moby is one of them.
What I would want to see change about Moby dick:
1) if I had a penny for every time I got stuck in a small gap I'll be richer than flipping Elon musk so my suggestion is make him flexible like Alan or make him break rocks.
2) the bite range is horrible, but it makes sense. I would suggest that instead of a stun from the blow hole how about a Vortex like Leo's.
3) he has such low health for a shark that has such a massive size, like this guy is dying to sea serpents and plesiosaurs half his size like wth.