During Unity's Anniversary at SCS, I was determined to complete all four challenges. This was for the first Challenge using either a Tree or a Bird. The stamp is from the set Growing in Unity. It was technically the first set I physically held in my hands. I bought it at Archiver's while awaiting my shipment of my first Unity Set.
Stamped on Acetate (easier to spell than transparency, LOL) with white Stazon. PP (and the green w/the sentiment) is Chatterbox from my stash. The pink I'm pretty sure is SU