"Now, assuming the text box has enough space for such a lengthy assessment..."

If I saw any of the comments you listed here, I would take them as they are clearly intended - constructive criticism to improve the image. No problem there at all.

This is strictly a hobby with me, but as with any hobby, I'd like to be good at it (long way to go yet!). So I would welcome such points. How else will I ever get better at this?

Steve