Why is this rejected for quality issues and yet others aren't

[packted]

Hi, I am wondering why this image of a swan has been rejected on quality issues.  I have submitted others recently which have been accepted and to me they are of the same quality.  I had all 5 photo's I submitted yesterday rejected and yet the other day I submitted 6 which were all accepted.  Anyway, any advice on this swan would be welcome as I want to learn.  Many thanks.

[RALPH_L]

overexposed highlights and it needs some sharpening.

[ricky336]

Hello,

The exposure is a bit off. You should try to bring a bit more detail to the swan's feathers on its back. Currently, they are too bright. Also, you could alter the white balance by a small amount - you could use the eye dropper tool ( in Lightroom for example) on the swan's feathers to get the correct white balance. And, increase the shadows, to make the swan's neck brighter.

E.g:

[packted]

Thank you very much for this information.  It's really useful and I'll know what to look out for in future.  Much appreciated.