I really like these images.
Great expressions and nothing included to take away from the
main subject.
Nice tones.
Can’t think of anything I would change.
With regard to how many images to include in a post.
I suppose it depends.
I find that I can normally best attempt critique of a single image.
Yet there are some posts where multiple images tell a story that a single image couldn’t.
The 5 images you have posted are of the same subject (except the last of course), are of
a similar quality and are all mono so it is quite easy to comment on them as a whole.
I would say post one image unless there is a good reason for posting more.