you model prettymuch the exact opposite way i do,
im modelling the same thing, (probabaly not going to bother with the contest)
mines alot more stylized, whereas yours is fairly "curve-less" and just for black gohan. yes the boobs on mine are alot bigger =P.
you did a good job on the face, but the farther down you go the worse it gets. ill see if i can do a quick paintover. ill edit it here in a sec
EDIT* here
i probabaly overdid the curves on the torso on the front view, but im pretty sure i nailed it from the side