Here are a few that were for fun (and practice) the first two were from a Weight Watchers© magazine.
And then this one was a bunch of head shots practice. Some used references, two of which were from a the Digital Painting d 'artiste book by Ballistic publishing. It was worth the price, that book. :D
And finally some studies of Spyro© and Cynder© that I did before doing a commission of dragons for the first time. The first set was an exact copy, the second was a rethinking. You can see the final here on deviant art!