I'm far from being a pro, so not sure my input has any value...
But picture #1 didn't show me the bee till I looked at it for a second time...
i think you see too much of the background and they eye doesn't know what to look for..
Maybe less dof and only focus on the bee or flowers near it would make it better?
I also liked pic # 16, but was the moon in clouds or is it just out of focus?