Thanks for both tutorials!
I would love to learn matte painting myself, if you don't mind me asking, what are the legal issues behind it?
I'm assuming you have to a. take pictures yourself, or b. use some sort of database of free stock photography. Where do you get your photos from? Or what is a good database for photos?
People have told me to use flickr pictures, but they're copyrighted..? I can't just take someones photograph. I'm not sure how this process works. What if I just need a tree or something, is google images out of the question?