Pointing your camera directly at the sun is bad for eyes and even worse for your camera sensor. That image is badly washed out from too much direct exposure to the sun. It's also not framed very well. The left foot is cut off.
I agree with the reviewers who rejected it. It's not a suitable photo for Adobe Stock.
Compare your image with other Stock contributions. Which would you buy?
The subject is also not sharply focused, probably because he was moving. This would have been more successful had the image been in sharp focus, the entire figure in the frame (no cut off foot as indicated by Nancy), and the sun mostly behind the subject, which would have resulted in a sunstar had the fstop been high enough, a true silhouette and very little blown out area. Take your friend down to the beach, or wherever you shot this, and take the time to experiment until you get the look that you want and the technical details perfect.
The photo is under exposed, the highlights created by the sun causes blown out details. There is also color fringing around the edges. In addition the sun flair is not accepted. And as is already said do not shoot directly into the sun.
Photographer and Nutrition Author