Hello. You have an interesting imagination for your characters, a dragon mage is neat. I wanted to say that you may want to learn how to work on line quality. A lot of your images are very faded looking.

One book that can help with sketching is this book by Jack Hamm, it's on Drawing Scenery and Landscapes but he gives tips on making textures that can help you.

http://www.goodreads.com/book/show/1027947.Drawing\_Scenery

I also found this inking tutorial helpful in thinking about line quality from a Mad Magazine Artist - http://www.tomrichmond.com/blog/2006/08/21/inking-tutorial-part-i/