Well the whole topic is so broad that it cannot be described in one comment ;/ But I can recommend you an awesome book: Colour and light - guide for the realistic painter by James Gurney. It will help you to understand some of the basics really quickly
Thanks a lot!!! :3 im gonna paint you a picture some time. do you want a specific character?
Yes, I do, but you don't have to paint anything for me. Try to learn new stuff day after day and it will be the best thing!
thanks again... lol omg your so much help! and so nice! i really want to paint you something :3 if you have a character you specifically want, send it to me