Burning incense can generate some interesting results. This one has got to be one of the most interesting I have been able to capture so far. No color was added. I cut some of the smoke out of the top to accent the shape that was already there. The lower portion is pretty much unedited. I didn't even have to add a contrast layer. Just a levels adjustment. I think this is the first time I have seen so many different colors in one smoke plume.