Paul Stam - editing advice

[Paul Stam]

But one of your crewmembers told me that this is an event (Open hangar day) and the people are not recognizable

[Paul Stam]

This photo was rejected because it was overexposed and too much or too little contrast. I appealed and the overexposed was gone, but this was the response from the appeal screener: Admin Comments >> Contrast is still off.
I don't know what it means. I think there is nothing wrong with the photo. But if it does, then what's wrong?

Photo: https://www.jetphotos.com/viewqueued_b.php?id=8462013

[Paul Stam]

No one ?

[Paul Stam]

I have waited more the a month, but no reaction.