Fist: the picture is not horizontal, and there are artefacts.
Noise on the leaves, over saturated.
Nice sunset/sunrise, at the first sight. Artefacts at a second:
, underexposure on the tree's fruits
. Noise and more artefacts.
Oversaturated and noise (in the sky). Strange traces in the sky.
Your last: over processing. The foreground horse needs some shadow lifting.
Thanks for your professional reply
Btw: Other stocks accepted them. This is never an argument. Each stock has its own quality requirements and checking.
I see little if any sales potential with Clouds & Trees. Sorry.
Adobe Stock inventory contains more clouds & trees than demand requires.
34+ million trees https://stock.adobe.com/search?k=tree
20+ million clouds https://stock.adobe.com/search?k=clouds
You'll be more successful with unusual subjects that have less representation and better sales potential.