For those who haven't noticed!
Top left we have, ticket taker. Who's also the guy who sells you a pink ticket at the beginning! When you go back and re-read the dialogue you begin to understand why he took those papers.
At the bottom of that you see, Pierrot and harlequin. Depending on who you choose you'll see them in the background. This screenshot was from pressing on the black tent multiple times.
Lastly... Cats. They're everywhere.