Improvements!

Is there anyone who knows of any good online art classes? Or something similar?

This is the kind of thing I want to learn:
www.youtube.com/watch?v=FVMLNk…
www.youtube.com/watch?v=bBp4nP…
www.youtube.com/watch?v=boxpz_…

I was actually thinking of doing University but I can't really spare the time these days, I just really want to expand! If anyone knows of anything that can help me learn this type of thing, that would help out so much, I don't know the first place to start so any help would be great.

Thanks in advance
-Pat


Also, one of my closest friends has been doing some incredible work lately, check out his work:

Rick - The Walking Dead