Portrait Practice

Working more on my portraits. Started off liking this one, ended up sort of hating it. I'm sure in a couple days I'll feel somewhere in between. Did this from a photo, it's a friend of mine from the Animation Forum. I'd like to start doing portraits more often, I know it's not animation, but I really enjoy them. Too bad mine never quite look like the people they're portraits of lol.
Anyway, here goes this attempt, c&c's welcome as always.