Another bunch of candidates note: my comments (if any) refer to photo below them.

First, thank you, and
do not feel you need produce a coherent response.
These photos as always can be enlarged by clicking on them

This one, though a snapshot
and taken with a lesser camera, is working its way up the list
though it may have too many words.

the one below is probably too wordy
can take out some text

Not a "pretty" picture - but message is direct

this one may not work so well out of context.

though I love this one
and it really applies I think it may be
too complicated and would detract from initial
viewing which is going to be very fast.

This one comes from one of the final
more up-beat sections of a book
if included it will come towards the end