ShadeDBZ's Workshop

[Strasteo]

This was a rush job, so there's some things out of place, but...

-Changed the blue and purple colors to be more interesting.
-Exaggerated and spiked the hair. It's just cooler that way, imo.
-Changed the pose to more of a fight stance. (arms up and legs spaced out)
-Shifted/changed eyes and features around and increased the shading present so that it became more intimidating.
-Restructured the face.
-Did... something to the shirt. Added white round button things to the top fer some reason.
-Added a pocket to the pants just for some detail.

Hope studying this gives you some ideas. What he's really missing is something interesting that sets him apart from other guys wearing jackets and pants aside from having purple hair.