Thanks for the suggestions, though I don't know whether I will further the site any more. I don't think I have ADHD, but maybe I have... as I tend to move on from things if I get bored!
Larger avatars are good. Can't you add the one with the mask to your original? That looks nicely gruesome.
Whats probably not clear is that the avatars are the people who attended that explore. The masked dude is @lpff who doesn't write here, but has an enormous Facebook following.