I am new to DNN and I have made a skin based on a site my client pointed me to. I think it turned out nice. If you go to Photos you will see a sample photo gallery. The site is very large, 1000 pixels wide. Client wanted large photos but I am not sure if it is a good idea. Client has a 26 inch wide-screen monitor.
http://ian.1000islandsphotoart.comMike