I want to learn how to make high qualitty art sets and i want somebody to teach me, and i want a PRO artist.

PS: i want to learn in Photoshop not in Gimp.

Wrong section indeed. Moved it for you this time, be sure to get it right next time.
Please read the global rules, and art board rules for future reference. Just so you won't get in trouble. ;)

~Friendly neighborhood Fenris.

this is the wrong base.
you should ask that in the rapid threads or somewhere else.
im sorry that i cant help you bro but im too busy

First of all, learn to draw, shade, etc in real life, before you get to making textures. It's not like someones gonna tell you a few things and you're gonna draw like Cerberus, no. To become a professional artist, it takes a lot of years to reach that point, where everything is perfect.

http://forum.toribash.com/showthread.php?t=382961

This tutorial might be helpful to you.