I'd love feedback on the technical issues found in the attached images. I'm a new contributor and would like to improve my technique for future submissions. Many thanks to anyone willing to offer critque!
I agree with @Jill_C regarding the focus and depth of field. I would also add that, in general, it is very difficult to get black and white photos accepted. Generally, Adobe Stock customers prefer full colour images and they can always convert to monochrome if they so choose.
Here are a couple of links that you may find helpful.