This is how I selected his hair.
I first used the Rectangular Marquis Tool to make a selection of his head.
I then copied his head to it's own layer via Cmd/Cntrl + J
Turn off all other layers.
[ATTACH=full]132916[/ATTACH]
Using an Alpha Channel selection process, I then selected and copied the Green Channel.
I used levels to create as much black and white contrast as possible.
I then used the Dodge and Burn Tools around the hairs details.
Finally I used the Brush Tool.
You have to have a complete black and white layer to use as the selection.
[ATTACH=full]132917[/ATTACH]
Once done, I used this to make the selection that I added to the layer mask.
This is the layer mask.....
[ATTACH=full]132918[/ATTACH]
