By far this is my favorite vector portrait. btw this is john frusciante (if you haven't notice above XD) which is the former lead guitar of red hot chili peppers and one of my favorite guitarist.
-for me I like the guitar, but don't like the hair much, i think its not that realistic.
reference - http://imageshack.us/photo/my-images/253/juliacher38og9gf1.jpg/sr=1
software - adobe illustrator cs3.
oh!. please critic my work!! thanks :)