I'm trying to understand why the quality of this picture isn't acceptable

I believe everyone here is trying to help, and I appreciate the time people take to offer feedback.

At the same time, image quality can sometimes feel subjective unless specific technical issues are identified and supported with clear examples. I agree that stock photos should be sharp, clean, properly exposed, and free of technical problems. However, contributors use different cameras, lenses, monitors, computers, and editing software, so their results and viewing conditions may not always be identical.

A contributor may genuinely believe an image is sharp and clean based on the equipment and display available to them. That is why detailed feedback is much more helpful than simply saying that an image is “not sharp enough.” I especially appreciate people who show comparable examples, point out the exact problem, or explain how shutter speed, focus, composition, or post-processing could be improved. That kind of feedback helps contributors learn.

Market demand can also be difficult to judge. I was once told that customers are generally not interested in black-and-white photographs because they prefer color images that they can convert themselves. However, some of my most frequently downloaded images are black and white. Adobe Stock serves many different customers, and they are looking for many different styles, subjects, and uses. No single contributor can fully predict what every buyer will want.

Not everyone contributes to Adobe Stock with the expectation of earning a full-time income. Some people are learning, experimenting, sharing their work, or simply enjoying photography. Acceptance standards still matter, but contributors should not become discouraged by every rejection. Learn from useful feedback, improve where possible, keep submitting, and continue enjoying the process of creating and sharing photographs.