Why were all my first Adobe Stock submissions rejected for "Quality Issues"?

Hi ​@CampestriniImages 

The first picture is underexposed and has noise grains. The composition is not good. You should either fill more of the space with the rose or utilize the rule of third.

The second image is overexposed in the highlights. It too is noisy. Some details seem to be lost due to lack of sharpness due to too much of a wide aperture settings.

The subject of the third photo is too small. You have too much of a negative space. This picture is also noisy. It has both compression and grain noise. A section of the picture is blurred. 

Best wihes

Jacquelin

Composition is an issue in each of these. In the first, there are distracting blownout areas that could have been cropped out. In the second, the fruit is partially out of the frame for no good reason. In the third, both the pot and the horizon are leaning, and the pot is dead center. Try to imagine how a Buyer would use such an image.

1. Too many distracting elements in the background. Besides, Adobe Stock already has over a 1 million rose buds.
   https://stock.adobe.com/search?k=rose+bud
2. This is your most visually interesting subject. Good commercial potential if cropping & vertical alignment were better. 
3. No commercial value. The potted plant looks out of place here. 

Photo submission overview

Hope that helps.

Cropping is the issue on this one, but all three need improve with regard to composition. Read up on the rule of thirds when it comes to subject placement.