What a great photo! I love how natural it is, it feels like the viewer could actually be there looking at this. Very neat!
The colors are wonderful! The browns and purples of the bee and flowers stand out nicely against the soft colors of the background. I also like the sharp focus on the bee, and how we can see even the smallest of details.
I think this photo could have a better composition. Right now the photo is quite busy and it's hard to focus on just the bee. Perhaps if you had used the rule of thirds more, it would bring the eye to the bee right away. I also think you could've blurred the plants on the way left, or tried not to capture them at all since they really don't add anything to the piece.