I'm guessing a painty sketchish style? I personally think it looks pretty good!
My personal favourite is a traditional line-art, smooth edged like a cartoon, and have digital colouring on top and under the original traditional linng.
The style itself was mainly inspired by seeing Aaron Blaise sketch realistic lions for about an hour.
I've seen most of the speedpaints you have, and noticed you do something similar to that? It's my favorite part of watching your speedpaints. Though I don't own a scanner of any kind (that I know of), I still wish to make digital drawings that give a traditional feel to it.
You don't need to look for a scanner. ;o; I'm sure I can find an old one somewhere, and even if I don't, I can just trace a bad-quality camera photo into an art program. I appreciate it, though.