I like how you developed the purple inside spaces. Cool idea.

Hey James, Keep going! It's an intriguing character portrait and solid drawing. I agree with what Steve wrote. I think it's just that you're mid-way in the process. It'll come together. If you're planning on doing these next things, please ignore this next bit as I am not sure what you're intending to do next: I would add that it looks like you're thinking about the direction of your light for the most part. And so it looks like you're going for a rendered piece. Do the same on the teeth and hand. Based on the amount of light to dark contrast that you have on the rest of the portrait it seems like a low powered light source. I would suggest lowering the value a little on the whole teeth mass. And then add the shadow side of the whole teeth mass For finishing and making a "detailed piece": - I would say that a big part of "finished"/"detailed pieces" in a rendered style is making sure the lighting is consistent. That gives your details some structure to anchor them. And then using those edges to help direct our focus, being selective about what to make crisp or soft. - Not sure if you do this, I learned to use a lasso tool to select and then paint into a shape for making very crisp edges. Lively personality in this creature. I'm also intrigued by what you're doing with the neck.