Assuming this is Try attempt, I am not 100% sure you are legal ...
After the shift to your "reverse swinging gate," it appears that you are no longer in scrimmage kick formation per 2-14-2a (you no longer have a “holder with a knee on the ground") or 2-14-2b (#15 does not appear to be 10 yards deep).
If you no longer meet scrimmage kick requirements you can no longer use the “free number exception” and you do not meet the “5 50 thru 79” requirement.
The depth of #15 is the key; if he is 10 yards you are fine. If he is less than 10 yards, I think you are guilty of Illegal Numbering.
2-14-2 . . . A scrimmage kick formation is one in which no player is in position to receive a hand-to-hand snap from between the snapper’s legs, and at the snap, either:
a. A player is in position with a knee on the ground 7 yards or more behind the line of scrimmage, in position to be the holder and receive the long snap and with another player 3 yards or less behind that player in position to attempt a place kick, or
b. A player is 10 yards or more behind the line of scrimmage and in position to receive the long snap.
I would appreciate any discussion and or feedback.