Interesting. Yes, that's basically what I've been going for but none of my prompts ever gave a satisfactory response. Plus I noticed you just copy/pasted from my initial comment and it worked. Weird.
After my last post I was eventually able to get it to work by uploading an example image of Santa pulling the sleigh and telling it to use the image as an example, but I couldn't get it by text prompt alone. I guess I need to work on my prompt skills!