All of your photos seem to have exposure issues (overexposed with blown out highlights.) None of them seem to have a sharp focus. When you look at the photo at 100% magnification you can see the images are quite pixelated. Perhaps in post processing the photos were over sharpened. See section of your photo below at 100%.
Also, you need to ensure the horizons in your photos are level - each of the photos seems to be off by a couple of degrees.
It would be worthwhile to read through Adobe stock requirements.
Thank you very much for your attention.
Photo 1: Not level. Overblown highlights. Not in focus. Too noisy.
Photo 2: Not focused. Sign must be removed or cropped out.
Photo 3. Not level. Not focused.
Unfortunately, the overall quality isn't good. It looks as if it had been taken with a smartphone, generally, the quality of the smartphone isn't so good for enlarging. Your photos show pixels when zoomed in as @reedesign1912 pointed out - you have JPEG compression artifacts. The phone has compressed the file to save space - the result - the file dosen't enlarge well. It is seen in all the photos.😒 And then you have the overall composition.
Have a read of this from Adobe about how to create better photos:
What kind of camera are you using?