Your handstyle is great, but, I gotta say, YOUR MARKERS SUCK! I don't like the streaks going on there. What type are you using? I got some good prisma's I'm willing to let go for dirt cheap.
i just use whatever is easy to rack. sharpies, some dual tiped japensese watercolor brushes, a few prismas. sketches are just brainstorming for paintings. i dont really sketch to make a finished piece ya know.
good stuff man. I always appreciate some graffiti. I'll post some of my own when I get a few done, I'm not that good but whatever.