Assuming Adobe said "technical reasons", because it isn't technically perfect. Adobe expect world class commercial photography. To start with you need to make clear and accurate use of focus and depth of field. There are many MILLIONS of flower photos in Adobe Stock already, this is very competitive.
Find new & interesting subjects to photograph that will be of interest to professional designers and commercial artists. Only submit your best images that have the highest technical and visual quality.
If you're new to Adobe Stock, read these links.
It's blurry, over-saturated and noisy. While flowers can provide good practice opportunities to improve your photography and editing skills, there are already many millions of technically perfect flowers in the Adobe Stock databases. So don't waste your time trying to get them accepted or sold as Stock images.
Hi @PEDRO HENRIQUE ,
It's a beautiful flower. However, it is excessively noisy. Displays blue and purple color fringing and some details are blown out with highlights. Also the edge of the flower is not completely sharp and you have applied a little too much saturation.
To inspect for detailed errors, please zoom in at between 100 and 200%.
Photographer and Nutrition Author
You have several errors here. Some have been pointed out by my colleagues:
And then there is this error by your composition software:
This border absolutely needs to be cropped out.