Is this the RHINOSAUR??? hahaha! This is really cool, I like the usage of large, medium and small. That giant fin spike is really nice for the design. Just by looking at it, I'm not exactly sure what the dark blue texture is--is it scales? Or is it a fabric covering draped over it? It works as a stylistic thing though! Also the front leg seems to be separated into two parts so I'm just wondering what the significance of that is. Overall you've done a great job!
I agree with Kylie. That texture was the first thing that I noticed when I saw your design, and its pretty cool!My only comment would be in regards to his spikes on his back and his horn. I feel like they would probably be growing out of his skeleton and through the skin, so I feel like there should be a little more rippling of the skin around those areas so that it looks like its poking out instead of simply sitting on top of it.
RHINO DOLPHIN! Hahahha, I like it. I love that he's all blue, it would be super cool to see a little more color variation tho. Maybe just around his extremities to kind of frame him!
I like the strong shapes and proportions in your design! They work very well together. The scale texture thing was already kind of mentioned - if you're going for a heavily stylized look, I think it works to leave it as a flat texture. If you wanted to lean a little more towards realism, I think it'd be cool if you masked out parts of the texture here and there (like on the shoulders, hips and ribs) to make it feel the anatomy feel more round and solid.