3 type of creating Skin (DotNetNuke)

I think, there are 3 types of creating Skin :

1. imitation skin
   
2. semi imitation skin
3. original skin
4. ... ?

Imitation skin

We imitate skin to a same System. This type is very very simple (because target and destination is identical). For example, we go to site Powered by DotNetnuke. Then we imitate its skin. So... we have DotNetNuke skin on our hand now :-). This is same for Joomla. We go to site Powered by Joomla. Then we imitate its skin.

Semi imitation skin

We find nice site. Whatever its System is. For example http://www.apple.com or http://www.microsoft.com/office. Then we imitate its layout for our DotNetNuke Skin or Joomla Skin (or whatever the destination is). Some skills are needed for this type, because of different of target and destination :-(

Original skin

We create skin from scratch. HTML layout, CSS file, image and all objects of Skin is created from the beginning. Some serious skills are needed :-) (but the result is satisfying).