photo rejected by technical issue... what exactly

Hello,

• The pictures are a dark so underexposed.
• The first mage is too yellow and green. so you need to alter the white balance and maybe add a bit more contrast.
• The second image, the white balance also needs to be changed a bit - it is a bit too cold - too blue, so you need to add more warmth - add a bit more yellow, and I think more contrast as well.
• The composition isn't so good as well. I think in the first image you need more room around the jar - the circle is too squashed!
• The second image - well, what does it show?
• Did you add vignetting in the second image? The corners are dark. Not such a good idea for stock images.
• Have a read of this from Adobe about how to create better photos.
  https://helpx.adobe.com/stock/how-to/tips-stock-image-acceptance.html?set=stock--fundamentals--adobe-stock-contributor

In my opinion, both pictures are fine. I guess the reviewer would appreciate more light in both of them.