Some of these are awesome. I especially love the ponytail-mohawk fourth from top-left. I'd love to use that for someone in a story or something. Also, of course the Vegeta-style hair to the right of that one is badass too! XD
Nice hairstyles.. but there is a mistake (or I just think that it's one..) at the second female hairstyle, the briad is changing the side... XD Frontview on the right, backview on the left... Kinda strange, huh?