whoa.  i'm very, very impressed.  that sounds very painstaking.  and looks great.

to be honestly critical: it's a little too perfectly parallel, unclumped (hair makes sub-groups), thick stranded and low contrast (even in that light- right now i'm looking at people in a very uniformly lit room, and their hair is still much higher contrast, especially if it's long and shiny) for a final result, but it seems like a good place to start if you're going to postwork it or go for a very graphic look (or both).  the very soft and even highlights remind me of greypixel's work.

but that's just me.