Macro shots rejected on Quality issues (WHY?)

Your depth-of-field is too narrow resulting in blurry photos.  That begins with your camera settings and focal distance.

These can't be saved in post-editing, unfortunately.

Understanding Depth of Field

https://photographylife.com/what-is-depth-of-field

Hi @Sahir39066467ibbt .

First I must say, when you're doing a close-up or macro shot you must use a tripod.

Secondly, Adobe does accept closeups like these but the subject must be clearly identifiable and must not be drowned out by the bokeh.

The first file has a camera shake. Also the subject area is not completely sharp and is a bit underexposed, thus not showing the details clearly.

The subject of the second file is not sharp and the highlights are a bit too high.

Best wishes

Jacquelin

Very minimal depth of field. You'll need a smaller f-stop and longer exposure times. Also, flowers images need to be incredibly unique to get accepted to Adobe Stock, as there are already millions of them available. 

In general, Adobe does not seem to accept images with an extremely shallow DOF, probably because there is little demand for such images from their Buyers. Additionally, the database is already overrun with floral images. Keep shooting these for your own enjoyment, but they're not really good candidates for acceptance or sale as stock images.