I agree with John, I think the link is tenuous at best;
the surfer is balancing
the bird is flying (or gliding)
OK, we could argue that a bird with one wing flies like a sycamore seed
Or the guys arms are aerodynamically helping (ever so slightly), but ...
So you do need to consider, apart from shape (and even that isn't presented at the same angle to camera) what the judges are going to see here.
Probably not the answer you wanted to hear, but that's my view.
I'd be delighted for you if you enter anyway and win, of course.
So think of this as 'expectation setting', by all means enter, there's probably nothing to lose and if you don't try, you'll never succeed.