That's what I've been doing for living for the past 10 years.
First it was character designs for animated series, and then I moved to the games.
I've spent last 6 years concepting and 3D modelling.
Some days it's better than the others, but over all it's still ok work.
Last 3-4 years I've spent working at Pandemic. Modelling, texturing and concepting.
It's unfortunate that you never get enough time to develop the characters properly.
And there's trends. Everyone loves trends, and if you do not keep up, your work becomes "old school" very quickly.
And no one wants the old school designs.
Anyhow, at the moment, we are wrapping up DAH2 game, and I am patiently waiting for my annual leave to kick in, so I can crash and sleep for a week.
In anticipation of such times, here's some DAH! sketch I did some time ago.
Not as an official piece, but for fun.