Predator X - Anatomy Critique

This is my first time sculpting so I’d like some critiquing of the anatomy if one would.

Predator X - Pliosaurus funkei - the biggest of the pliosaurs nowadays. With a head that was almost 3 to 5 feet longer than a t-rex in the largest estimates and about 40+ feet long and weighed a lot.

If anyone watched the BBC’s walking with dinosaurs, Pred X is about 3 times the size of Liopleurodon.