No, your skin is your skin. You don't need anyone's permission or approval to modify and release a skin that has a Creative Commons license. You just need to release it with the same Creative Commons license.
I was just chewing on the fact that I don't display the location in my skin, even though it certainly isn't a bad idea.
Yeah, Administrative Region in the US is the "state". That is super-important information in the US, but of no meaning or value in the UK. It isn't done, and probably would be politically incorrect to use:
Once Brexit causes Scotland, Wales and Northern Ireland to spin off on their own, maybe then... Where is Edward Longshanks when you need him?
I probably need to IfMatch for "null", and take the appropriate action.