Here's your cover. Also your description of the cover, was the summary of your story, so I hope the background image is what you had in mind.
If you have other ideas let me know in the dms. Also dm for your cover if the given mockup was satisfactory.

So I made two instead of one. One of the design came from my imagination to add a bit more pop. But your free to choose the one you like best.

Type 1:

Type 2: