I love the second inspiration you posted. It was so clever. I love your take on the prompt as well. It is very different. But I also have a bit of problem seeing the snowy footprints. Maybe when you rendered a bit more, the story will become clearer. Because the object depicted is unfamiliar/strange to readers, it is hard to read clearly in the thumbnail stage. Maybe it also needs some kind of storytelling elements in the picture to hint where these snowy footprints come from.
Looking forward to seeing how this will be developed