From the set, I like this one best. I get the feeling I'm really in a darkish forest looking out toward the light ahead.
I think, if I had been processing this one, I would have probably raised the shadows a bit (not excessively) just enough to give a little bit of structure in the dark trees. But, maybe leaving them very dark, like you did, is what achieved that "feeling" I saw ?
In this instance, it was a deliberate decision to leave the tree trunks mostly silhouetted with just the rimlight higlighting their form as raising the shadows didn't really add anything and brought out details in the bark that I didn't really care for.
The shot below was a different take on the same scene that I abandoned after editing it for a few minutes, I think this may be more in line with what you were thinking?
My initial reaction upon seeing this was to comment on how, while the real skill in a macro shot like this is getting a nice sharp image of the flower and insect, the main draw for me was the combination of softly blended colours in the background and how nicely they work with the colours of the flower in foreground, but having subsequently read your description, it appears that was the main thing you were aiming for, in which case you've definitely succeeded.