Is Elliot even at the Fall Festival?

[one trick bish]

The first one where you put stuff on display. I walked around 3 or 4 times, all over the map, straight up could not find him.

[Zaffre Ziggurat]

He's in the food and drinks area with Gus and and some other villagers - head north from the square like you're going to the Community Center and you'll find him standing by the tables.