As I mentioned in an earlier post, I learned SO much from each of the illustrators who participated in the SCBWI Illustrator Intensives even though none of them focus on digital art (like I do).
In terms of work process, Richard Jesse Watson's was the most similar to the way I work: very loose & quick. But watching how Richard worked, I could see that I've been holding back in my own work, and found his demo hugely inspiring.
One of the many things I loved about his demo was how he's not afraid to experiment with different types of media and textures. At one point, Richard borrowed E.B. Lewis's lip balm:
...and used the lip balm for applying gold leaf (thanks to Diandra Mae for the reminder). Richard scratched and scribbled and erased, turning flat expanses of rich color into fascinating textures. I -love- this, and am determined to figure out how to do this digitally. I already use the digital eraser to create a woodcut effect, but now I can see I could take this even further.
More info about Richard Jesse Watson:
My other SCBWI Illustrator Intensive session reports