The dino scene is really well done.

The sprites, well, they're also very nice, though on the second one, I'd like to see some bouncing from the visor instead of just plain moving the eye... holes. Also, the second from the right, the sprite's going-into-smile transition, I believe, could benefit from uh, shape changing (?), instead of just sliding left a few pixels. Hopefully, you know what I mean.
So, is that a bloody sea, or a trail of magma? If it's magma, I think it'd look better with a few rock fragments here and there.
Overall, very nice work. I like it. Lots.