Could you please help me figure out which exact problem caused rejection？

Thanks everyone for all your feedback. I will go through each comment and work on the improvements.😀

There is noise in the shadows: 

In addition, the flower leaves look like there has been overprocessing, like you often get with small sensor cameras, like phones. The same is true for the first picture.

The center disk appears to have Moire. 

Hi ​@ZALEZPHOTO 

Both photos are overexposed. The camera is either too close to the subject or need more depth of field for both photos. The edge is not sharp.

Best wishes
Jacquelin

When you submitted this, I would imagine you uploaded a few shots of each arrangement, for ex. horizontal and wider shots. The immediate issue I noticed is the inconsistency with these two with color. This is a big oversight that probably AI flagged and rejected.    

There’re steps you must keep in mind. - shoot all the shoots with identical light conditions  - avoid shooting in auto exposure mode, even a good camera will give variations in color and exposure, only shoot in manual mode at the exact settings. - Get Lightroom if you don’t have it already, and batch process all the photos you have selected to upload. If you don’t have Lightroom, you must do the “exact” adjustments to all the photos you edit. 

Last, pay attention to detail, the second photo has a small dark spot close to the top right corner, it stands out too much, that’s a simple fix that should not have been overlooked. On a very personal opinion, the first photo is sloppy, it lacks the finesse and delicacy of the second, also the petal at 2 o’clock looks… off, that could have been your intention and I respect that, but it takes away and diminishes a good concept.

I think you’re on to something good, and I can see your work selling well. The great thing is that you’re in control and can reshoot your work until it’s perfect. 

Feel free to DM and ask for feedback next time before you submit, or if you need some guidance ho to shoot in manual exposure mode.

Cheers!

Francisco  

The reason for the rejection is listed in the asset details.
What does it say?

Is this asset a photograph of handmade artwork?
It does not appear sharp when viewed at 100% zoom on a PC.
That might be the cause.