I can do that. Just some things that might not turn out good when working with me:
You know, I'm not as good a drawer as the people who made, for example, the render for your current theme. And I've only used Photoshop for four months.
You know, my level isn't that much higher than my current theme... >_>
Death Note, eh? Hmm, well it sure has to be a good anime. After all, it's got a crazy fan base. A really big one. Haven't watched it, though. Thus, can't actually say anything 'bout it. Try it, perhaps.