Quality Issues rejection can someone explain why?

Focus always need to be on the eyes. If the eyes are not sharp then the image is bad.

Focus could better:

Not sharp enough for Adobe Stock.

Composition is another - easy to see without MS Copilot!

Try reading these links - it might help!

User guide:
https://helpx.adobe.com/stock/contributor/user-guide.html
Exposure:
https://www.adobe.com/creativecloud/photography/discover/exposure-in-photography.html
Composition:
https://www.adobe.com/creativecloud/photography/discover/photo-composition.html
Learn and support:
https://helpx.adobe.com/support/stock-contributor.html

I want to focus on the animal's eyes.

The green fringe around the bird's outside is noticeable.

This is what MS Bing AI says:

I have carefully evaluated the photo based on your criteria, and here's what I found to be problematic:

1. Exposure: The image shows slight overexposure in areas like the duck's white feathers and parts of the paved path where sunlight is directly hitting. This leads to a loss of detail in those highlights.

2. Contrast: The contrast may be a bit high, which exaggerates the overexposed areas and slightly diminishes the dynamic range.

3. Composition: While the duck is prominently framed and draws attention, the composition suffers slightly due to the presence of a distracting white object (possibly a person) on the right-hand side.

4. Focus and Depth of Field: The focus is sharp on the duck, which is good, but the shallow depth of field makes the background blur excessively, limiting context. This is subjective—some may prefer this aesthetic.

5. Histogram: The overexposed areas suggest the whites in the histogram may lack full detail, reducing tonal range in highlights.

6. Unnecessary Obstructions: The white object on the right side is an obstruction that takes attention away from the main subject.