An Alien

Zerg meets a centipede and a Finding Nemo shark. ;)

Seriously, though, I love the design. The feet look a bit like blades, though, and the area around the mouth looks a bit blocky.

(Are the feet attached? Unless this is just for a still [which I doubt], not connecting the feet to the body will give you a lot of trouble in rigging and animation)

My brother did it in TrueSpace as his first ever model. It was intended to replace the model I had for my Ignus aliens for my game Epoch Star. Admittedly this model looks much much better than the concept model I did a few years ago, but it's not quite the look I was going for (primarily the head is too round for my personal taste.

Here's my sad looking concept model (feel free to ridicule me about my art, I'm a programmer):

looks good.