You did a good job with the hand. Have you noticed that Halford has small hands like a damsel?
The jackets he wears are really hard to draw anyway since most are complicated elaborations on the basic bomber jacket. I like your rendition of Halfords head.
I'm fairly happy with this one, by no means perfect or anything but anyways, here's Rob in action! LOL! The jacket looks funny cos the pic I took this from, the jacket is hanging open against his arm.