I think it's good. I dunno. lol
You certainly don't make it easy to take screen shots. On top of having to do the menu thing to make the UI disappear, I also had to take a screen cap of my entire computer screen then crop the image. lol
I recommend that you at least give PC players an option to take quick shots of the game with no UI and easily with a single button. :P
For events like this I imagine there's lots of people who would love to take pics and share it.