tarquin-
I've just wasted my weekend working on designs, but never mind.
Whether you have wasted your weekend depends on - whether someone else implements your skin, or - whether we come up with a new skin system that is based on page templates instead of code/HTML mix, so that you can do it yourself. Personally, I don't consider that a development priority, and it's unlikely that it will happen anytime soon.
Whether your skin becomes the *default* is a separate matter, and I think we should vote on the default skin ever so often. I'm reasonably fond of the standard skin after my tweaks, but I also liked some of your ideas, and the UnrealWiki definitely looks quite impressive.
Regards,
Erik