All images display grain/noise and are underexposed. The first has color fringing. The second is not completely in focus.
Photographer and Author
Examine your images at 100-200% magnification. They all suffer from quality issues of one kind or another -- underexposed, blurry, grainy, etc..
The 3rd image is too dark and grainy. The quality is not good enough for Adobe Stock, sorry.
I think the the rock climber could benefit from a tighter crop around the subject. The left half of image is too blurry. Brighten it a bit and add a touch of sharpness and vibrance with adjustment layers.
Hope that helps.