Love the macro work...great effects with the water droplets! I've noticed the lack of water droplets in some of your picture's background / foreground...they should be there if you are going for a "natural" look. The extremely limited DOF with macros ensures that you wouldn't need to spray too much of the surrounding scene...
Those are real raindrops. No spray bottle on that photo. But thanks.
Actually, the last seven or so macro photos I've posted were all taken on the same rainy day. The only ones where I used a spray bottle were the photos of the Black Iris.