Honestly, I'm not a fan of the first round of themes. Too many themes are more restricting than I'd like, seeing as my original idea for a theme always gets scrapped in favor of an overscoped idea, I positively vote for themes where I can think of several concepts almost immediately.

If you disagree with one of my -1 votes, feel free to ask why I seriously voted it that. A good argument in favor of a theme might just change my mind!