Very nice!
I have two suggestions for the next round. Shoot landscape, not portrait. It limits your composition options a bit but works better for video. I take it a step further and crop my images down to 16:9 so that there are no black bars at all. You could always do that on your camera but I like to do it later on the computer so that I have options including the software panning effect.
It looks like you light painted the queen and then kept the same foreground image throughout the lapse, right? I like to use my light painted frame just for still images and then use the natural foreground exposures for the lapse. Granted, that can be tough when it's dark and you don't have a constant light source like a fire. I guess you could always just setup a flashlight or something at an angle and give it some indirect light that way. Then just don't move the flashlight throughout the process. That's kind of a tough one really. Campfires, moonlight or other semi-constant sources are the best way to do it, IMO.