Wow, you're already way better than I am with sculpting. I've stuck to slow old polygon primping and never really got comfortable with ZBrush. I tried the trial for Mudbox once a few years ago but didn't like it any better.

Are the teeth separate sub-tools or are they fused with the jaw as a single piece? The lower jaw looks like it's all one piece, but the upper jaw looks like the teeth are separate. I really like the teeth and the ears!

Thanks a lot  upper and lower jaw all consist of 1 part, I think it's mostly the shadows that make the top one look like it has separate teeth.

Still need to change the facial expression tho  he looks surprised, and might change proportions a bit to make his head and hands a tad bigger.