Not sure what the Technical Issue is with this image.

Also the quality is unacceptable for print.  If you examine this image at 100-200% magnification, you see the grain and other unwanted artifacts that make it unusable.

It goes without saying that this is a fiercely competitive category with millions++ of perfect white roses already represented.

• White rose
• White rose bush

I think the single hardest part of being a good Stock Photographer is giving customers what they want.

====================

See links below.

• https://helpx.adobe.com/stock/contributor/help/reasons-for-content-rejection.html
• https://helpx.adobe.com/stock/contributor/help/quality-and-technical-issues.html
• https://helpx.adobe.com/stock/contributor/user-guide.html/stock/contributor/help/photography-illustrations.ug.html
• https://helpx.adobe.com/stock/how-to/tips-stock-image-acceptance.html

Hell a lot of noise and the petal is unsharp, as is the whole picture. The picture is underexposed. And there are strange reflections on a leaf:

Maybe the whole picture is also oversaturated.

The picture is not clear. Movement or lack of focus is possible. On the edge of the petals there is a strong chromatic oberation in the form of a blue veil.