They seem very gestural. You created a pinch and a stretch which is something Proko stresses in his gesture drawing class. Nice job! It looks like you were also looking down the mass of his body to find the direction too judging by the construction lines which is also really useful for gesture. I like the straights and line weight on the bottom, I think it adds alot of weight. A few criticisms - On the seal on the left it looks like his fin was drawn considering contour mostly though. You could make that shape much more gestural simplifying it with CSI and considering the pinch and stretch. His tail also ended up quite stiff, I see a flowing s curve for the gesture there.