I'm not a concept artist, I am a freelancer and my main interest is teaching. I'm for hire if you want private instruction on drawing fundamentals, digital techniques, traditional media.
My rate is $40/hour (via PayPal) for private Skype tutoring, and/or $10 each for a thorough written critique and drawover/paintover of either a WIP/finished piece of your work, or 2 pages of sketches.
Here are some samples of my work in some different media:
(More on my blog and web site.)
I also have a YouTube channel of tutorials, if you want to get a sense of how I teach & think about things.
If you think I'd be a good teacher for you, please send me an e-mail.