I am trying my mouse at sketching on a computer. It isn't very good so far, and I'd like to know if there are any tips some of you guys have that I could use. I am currently using GIMP (I have a huge plugin at adds a shit load of stuff, so it's just about as effective as photoshop for cheap-o sketches like this).
This is what I've got so far: http://prntscr.com/9cf6cn