Photoshop tutorials, DIGIPAINT!

So. In preparation for Digital painting next semester, I thought it might be a decent idea to post a couple of tutorials among the many I've looked at, to sort of... give anyone interested a bit of a head start.

Click the pictures to embiggen them.

Prepping line art for painting: 
There are really a ton of ways to do this, this is just the one I've found to be best.
 

This one's by Zub.

The value of very basic brushes:

Link to Author 

Some colour theory, sparing custom brush use, and effectively using textures: 
This one is mostly process. but it helps.

 Link to Author


Also, for some more stuff, check out Zub's website.