This probably would have looked a lot better if you'd used a brown instead of white..it seems to stick out oddly being black and white if you ask me. The lines are way too obvious because of the strong contrast in colours... If you want the colour to be better, try mixing some brown into white, or into a light grey to get the subdued tone, then paint that carefully over the black so the lines are still there but look less like paint lines and more like shaping. It'll look a lot more proper ood-like that way.
I really like how you did the tentacle parts, those came out wonderful. Not at all a bad first attempt though!
Aww, well live and learn hmm? Those colours can be hard to work with when you haven't had experience with mixing paints and things before, so I can understand. What would make a second attempt even better, is if you could get liquid latex and learn to work with that too for the wrinkles and all. It would add texture and shape that a young human face just doesn't have. :3
Glad I could help even if it was a bit after the fact. :3