Getting a hands-on installation is never easy. You can look at this week interest and you can see from tweet from Mark Jaquith.
At the end, one of the core developers for WordPress aree about the upcoming theme that must be improved upon.
In the article about it – Introducing great themes you can learn more about where to improve and make your own as well. By far, it might be a lot easier than you would imagine. Fret not, by way, here’s the best place to get information on working with formal WordPress themes.