Not a huge fan of #3. Number #1 - wow. I've never seen a dragon fly "face" like that before. Great colors as well. #2 is quite good as well, but I feel like this is either a strong crop or you just *slightly* missed focus. Also, perhaps amp up the yellow saturation on that one. Nice stuff!
I really like the dragonfly. I've never even gotten that close to one, much le had it sit there so I could shoot it. I don't like bees though.. been stung too many times. You're braver than I am.
Mathew, nice shots. I think I like the butterfly best of the three, but as Heitz said, I think I would like to see the yellow amped up a bit. Maybe it needs a bit more vibrance.