I was experimenting with settings on my camera. This was done with the ISO set at "Hi 0.7", which is two clicks (2/3 of a stop) past 3200. Hence the graininess. I also had the exposure compensation set at +3, the Active D-Lighting (for shadow detail) at Extra High, and the white balance set at tungsten with the A6 compensation, which I think makes it cooler. The exposure was 1/60th at 4.2. The "Picture Control" was set at Vivid, with the saturation cranked all the way up. This last setting may explain the unreal yellow glow behind the tree. But the tree was manufactured in China, so this may be luminous lead particles.