Christy's 2017 Graceful Best in Show
The image that the contest organizers posted which had the envelope on a white background so you couldn't see the shape of the arch pushing off the edge. The theme was *pushing the envelope* so Christy wanted to literally push the arch off the edge of the envelope.
Congratulations Christy. Thanks for sending a better photo of the envelope
Christy also tells me that the contest may be losing their sponsorship. I guess I can volunteer to run the contest.