That bee is about as good as it gets. On second thought, no, it IS as good as it gets. Composition is strong in it's simplicity and technically superb.
The rest are really great too, particularly #2&3. The only drawbacks to 4&5 have nothing to do with the images, just the subjects are a bit worn by the time of year. *sigh* perfection is so fleeting particularly with such delicate subjects. Even so #5 is really strong in it's framing and simplicity.