Can an HTML Theme be Converted Into a Wordpress Admin Skin?

Although I'm slightly familiar with developing themes for Wordpress on the front end, I wanted to ask how can I go about theming the admin panel. Is it really difficult?

I've searched all over and I really haven't had much luck finding pre-made templates nor tutorials so I've been stumped.

Currently I am working to integrate this HTML skin into Wordpress:

Any insights are very much appreciated. Thanks very much in advance,