I very much liked your story.
I like when someones imagination goes so overboard that realism really doesn't matter anymore and I verymuch prefere when the wacky fantasy stays lighthearted.
Because when somebodys dark fantasies go rampant, things can become very opressive and depressing very quickly.
I like the open ending. You can write a sequel, but the story is just fine without one.
However... some parts of the story felt gramatically odd. I can't say if this is a problem on my end (not native speaker) or yours (mistakes).
If the problem lies on your end, a sound proofreading should eliminate all problems.
Thank your very much for sharing!