This pin is part of the Hitchhiking Ghosts Collection. The others in the collection are Gus, and Phineas. Ezra is 2 out of 3 in the set.
Ezra is a yellowish-green skeleton wearing a teal suit with a teal bow tie. His hat is both colors. Ezra is lifting his hat, and doing the 'hitchhiking motion' with his thumb.