Anna, This was an excellent challenge. I learned a lot, and I'm sure others did too. There are entire photography courses dedicated to the subject of understanding and using white balance. If anyone would like more information on the subject, try http://digital-photography-school.com. It's a free site, and has tips and tricks from some of the best shutter bugs in the world. BTW: I don't get anything for recommending this site. It's just one I found that covers a broad range of photography and post processing subjects, as well as being one of the easiest to understand. Thanks again, Anna. Great job! :thumbup: