Any idea why this could have been rejected under the "exposure issue" category?
in Camera raw, the exposure warning shows some overexposed and underexposed areas (marked red and blue in the image):
This could be the reason for rejection because of exposure.
The lights in the area of the corn cob (?) are also too strong in connection with the blurriness to be able to perceive details here as a viewer, because this actually forms the main object of the picture, I think. As a supplementary tip, I would also arrange a slightly calmer background so that the main object would be more in the center. The light-bubbles in the background, eg., disturb here the attention to the main object.
First quick look at this photo caused my eyes to seek a central focus. Eyes were pulled to the confusing background. Corn cob so white can't see the corn cob clearly. Subject suffers. Maybe start over fully blur the background and fade it a bit. Exposure might be a little off or improved too. Camera Raw should help? JH
Thanks everybody for your input! I will correct it and upload again.