Martina and Hansi from Nerdforge made a video about art at some point. She's an artist and he wanted to learn, so I believe she made the following playlist for him:

https://www.youtube.com/playlist?list=PLKxVMUwzoPxEyxkyyTHw_...

The video they made about it: https://www.youtube.com/watch?v=MWi1pCR3peg