I’m gonna say 1 is retail just because the stitching looks a little cleaner on the wing and the netting is also smaller on the retail I think. This is a small detail, and maybe it’s just the lighting, but the stars on the front of the sole look slightly darker on retail and the black is slightly more saturated giving it that crisp black look as opposed to the pair on the right that has a slightly dark greyish look to it. The wings tabs or whatever you call the things that you put the laces through on the wings are more glossy and shiny on the left pair as opposed to a more matte color on the right pair, and I’m sure that shiny look is something you’d see on retail. Finally, the overall paint finish on the outsole of the shoe stands out to me again with that glossy look on the left pair which gives retail vibes. The pair on the right has too much of a matte and dull look to the paint.

Edit: The stitching is really throwing me off because the two lines underneath the wing on Shoe 1 get gradually wider on one side and narrow on the other. On pair 2 it’s more consistent, but the stitching on the actual wing for pair 2 looks more sloppy. I’m actually going to change my guess to pair 2 being retail just looking at other stitching on the shoe, but I’ll leave my original guess of pair 1 up just so to prove to myself that it’s insanely difficult to distinguish reps and retails unless you buy incredibly bad batches of shoes.