These photos were rejected, I would like to know the reason.

[katharina_4885]

 

 

[yamato7]

The composition is poor.
The colors are off and a little dark.
Retouch the image in Lightroom or Photoshop before submitting it.

Have you prepared a model release?

[katharina_4885]

Thank you very much for your feedback. Yes, of course, it's a model release, sent immediately with a photo.

[daniellei4510]

The second image: Framing with the foreground is usually fine, but it's almost 50/50, so the foreground is too predominate. And cropping again.

[katharina_4885]

Thanks for the feedback

[Jill_C]

These appear to be mobile phone images; it would probably have been preferable to shoot in landscape rather than the typical cellphone portrait orientation. Composition is the major issue in both images, and the first one also has chroma noise.

[Nancy OShea]

This is your competition in Stock.

Find three things these assets have that yours don't. 

https://stock.adobe.com/search?k=child+cooking  656K results

Adobe Stock customers expect the highest visual and technical quality for use in commercial projects— print, digital and textile.

• https://helpx.adobe.com/stock/contributor/help/reasons-for-content-rejection.html
• https://helpx.adobe.com/stock/contributor/help/quality-and-technical-issues.html
• https://helpx.adobe.com/stock/contributor/user-guide.html/stock/contributor/help/photography-illustr...
• https://helpx.adobe.com/stock/contributor/help/how-to-submit-distinct-content.html
• Model/Property Releases:
  https://helpx.adobe.com/stock/contributor/help/model-release.html
  https://helpx.adobe.com/stock/contributor/help/property-release.html
  
  

Hope that helps.