Welcome to the Guild Alex! Bogie's right, the best place to begin is by delving into the tutorials here. Decide whether you wish to continue with traditional media or make the move to digital or do a combination of both. There are tutorials that discuss techniques for all of these methods. Then just practice the methods discussed, and create an inspiration folder to keep track of some of your favorite pieces from other artists. Study these. Keep practicing, and with time your skill will grow. Welcome to the fun!

Cheers,
-Arsheesh