That's a pretty good vegeta. You just chose a bit of a light colour palette for vegeta, but it's still decently accurate to Akira Toriyama's original concept for Vegeta.
You seem better handled with Shonen characters than you are with realistic ones.
From looking at this simple drawing of Vegeta I can already tell you have a good chance at doing some decent Shonen styled web-comics.
I know you did one all by yourself, I read it. And no offence, man, but it was pretty horrible.
The dialogue was atrocious, the characters were one-dimensional, the story was a stupid idea to begin with, and it was all one, spectacular mess.
This is why the next web-comic you do has to have another guy on board, a writer.
Anyways, a good drawing with pretty alright lighting.