At conceptart.org I found a link to a for me incredible site: Figuredrawing. This site includes a tool, where you should create art in an extremely short amount of time - in my case 2 minutes. Today I have done this for the first time in my life. And god, I suck. :/ But I want to do this daily from now on. So yeah, I hope it gets better after a while.
26.08.2011: (spend only two minutes in every pose)