Not personally a fan of the new voting process, people already get two votes and I think letting people vote on as many entries as they like will lead to:

a) People "voting" for an entry because they like it, not because they think it's a winner
b) People supporting their friends/other members they know well entries just because it's public if they didn't but had the option to

As for the topic, looks like another good one. I did something similar in an old Star Wars adventure where I made a map blueprint of a building for my group to break into, but the map was old, so when they got in there they were like "where the **** are we?!"