Twilight Waterfall - Drawcast Painting

Here is a painting I recently completed using the Drawcast ap for iPhone. Tell me what you think. I am still figuring out the subtleties of the ap to make or give the most accurate painting experience.

Check out this video on YouTube:

http://youtu.be/OEDkAByrOEU

Here is a jpeg preview as well invade you don't want to watch the time-lapse