Well, not a lot of comments I think cause the interesting part here to me will be playing with caustics and water shader as with textures.

The dolphin's almost finished we could say, modeling part speaking, except for teeth, nice pinky tongue and 4 holes with eyeballs in two of them. And it's pretty smooth (apart the crease yes ... dolphin's got one of the finest and flowing water-profiles).

So, not much comment so far, we wait for the details now hehehe

And ... wondering if it poped already ... do you know what you'll use as base shader for skin ?