Today I was checking Eric Chahi´s website (the author of Another World) and clicked on "Links". There I found a link to Hydropix website. Hydropix is the artist behind Prince of Persia: The Two Thrones and Warrior Within (and Alone in the Dark IV as well). I´ve read complaints about his bad art, and after seeing his stuff, I couldn´t disagree more.
Hydropix site
Make sure you check the "Video Tutorials"
Hydropix site
Make sure you check the "Video Tutorials"