link broken, here's the image:

Using references is not a bad thing, you're actually learning how the thing looks.

The drawing is not bad, but it looks really weird overall. The eye is ultra detailed while the rest looks like a sketch, the side of the head looks really flat. Just try to use some references and learn perspective/3D, it'll help a lot.


You seem to be getting the hang of some things though; the lines on the eye really doesn't look bad, so you can do stuff.