Akvis has released NatureArt 1.5 (http://akvis.com/en/natureart-tutorial/effects/index.php) for Mac OS X and Windows. It’s an update of the tool for imitating the magnificence of natural phenomena on your digital photos.
You can choose from these nature effects: Rain, Sun, Water, Lightning, Clouds, and Fire. You can also create a vast array of effect versions.Change the weather on a photo, illuminate a night sky with glistening stars, light up a dark landscape by adding sources of light, create a flaming text effect and more.
Akvis NatureArt is available in two versions: as an independent program (standalone) and as a plug-in to a photo editor. Each is US$72. The plug-in version is compatible with Adobe Photoshop, Photoshop Elements, Paint Shop Pro, etc.
A demo is available for download. Also, Akvis NatureArt can be purchased as a part of the Alchemy bundle.