Guys stay on topic - books.
tshirts - There is no fast way to learn painting, there're a ton of books in this thread some of them can help you but you'll be experimenting techniques no matter what and that takes a lot of time.
Alexander19 - i think your teacher has a better idea of how the layout should look like - as for subject: different gods, buildings, talismans, mummies, statues, writing (hieroglyphs), war.
If a subject like egyptian art doesn't inspire you you're in a lot of trouble.
Some of my books i studie from:
Atlas of the animal anatomy
Anatomy for the artists
John raynes has a couple of fun books.
Vicenc b Ballestar and Jordi Vigue if you like to try different techniques (pastels, crayons, colorpencils)