Developing a skin for dotnetnuke is really a tricky stuff. I really enjoy it very much. Having a good experience with dotnetnuke, now I can contribute to open source dnn by creating some good skins and that way I can learn a lot by interacting with people who review, evaluate the skin.
Please feel free to use and download the skins, they are free and get back to me with the problems, suggessions and reviews about the skin.
I've started a discussion where you can suggest which open source xhtml template you like to see as dnn skin?
For more information about all skins available and view their screen shot visit their individual wiki page here:Cash NatureBluePrintSampleNutica
Enjoy the new version of this skin and tell me the issues with this.