Rejected image

Customers can colorize images after purchase if desired.

But they certainly do not want to color correct an image that they're paying for.

White balance should be kept as neutral as possible to reach the widest customer base.

https://www.adobe.com/creativecloud/photography/technique/white-balance.html

Save the fancy camera & filter effects for personal projects. Don't use them for commercial assets.

See Photo Dos & Don'ts in your Contributor User Guide.

https://helpx.adobe.com/stock/contributor/help/editing-dos-and-dont.html

Hope that helps.

And you're right. Don't get too "creative" with unnatural colors.

Too green.

Because you said "image" I assume it is not a photo. Adobe does often refuse aristic effects they do however accept fog. I do not think that is an effect. The problem I see is that some shadows are underexposed and the histogram shows an absence of whites. The entire image is very soft and could use some sharpening. Also, .png is used for transparent backgrounds. This image should be .jpg.