Everything on the "surface" looks great, except the fact that you have so little time in on AD. As a whole candidate, you are essentially as good as the best candidates that were chosen, however they may have had more experience in leadership even though you are a PO2.
This is only my perspective, I am not a board member nor have a I sat in on a board, one of the members here can chime in and dispel this theory. I don't see anything else, did you put in a waiver for the Evals? Are you an FC? Nuke?