Hazy, underexposed, blurry, chromatic aberration, white balance issue, leaning verticals, and not well composed. This appears to be straight out of camera without any editing, which is rarely going to yield an acceptable image. Study images that are already in Adobe Stock to see what constitutes good, high quality photography.
If you were a Stock customer on the hunt for stock images, what would you use this image for?
I'm guessing this was rejected for technical reasons? Technically, the foreground is underexposed and too dark and there is no color vibrance. But I would not be too surprised to learn it was rejected for aesthetic reasons as I don't see much commercial value here.
Adobe Stock customers expect the highest visual and technical quality for use in their own projects.