I'm no expert on PPG other than being rejected: I'm 0:7.
There's too much negative space I feel - it diminishes the appearance of distance between the ski and the yacht. If you cropped to a 5x4 aspect with the jetski in the lower left quadrant and it becomes better for me immediately. It's very monochromatic (mostly blue) and not very contrasty except for the negative space that
I feel doesn't belong.
I have no idea if it would have had any affect on the outcome, but here's an alternate view. Pardon my indulgance and I'll happily remove if you wish.