Love both 1 & 2 -
The composition of the bee shot is lovely. It encourages you to look around the frame, and in doing so you notice the great dof and details such as the water droplets - not to mention the sharpness of the bee itself.
The beach shot makes great use of lines and balance in it's composition to engage the viewer and keep your attention. Colour is great too
While I like the b&w of the third, I am also bothered by the focus effect highlighted by Matt - other than that, it is also a really nice picture.