This started out as a random sketch at work. Finally I got around to doing it. There are several layers. You can remove the snow cover on the tree, add lights, add a star, and pine cones. Plus you are free to draw your own ornaments, tinsel, characters, etc. Just please don't remove the signature (top layer) or make adoptables or set up an art shop.
Oh yeah, there is also a day scene. I may or may not get around to adding more layers, but in the mean time, have fun and be creative. The extension cord outlet in the corner is plugged into a power source, so feel free to plug your own lights into it if you desire.