There was recently a post here about helping pick a cover, and I really enjoyed reading through the comments. I figured I would do something similar with the cover I'm working on right now (Though my options aren't quite as unique as the ones in that other post). Anyway, here they are:
I will say, the story starts out in a snowy area. But to be honest, I don't even know if what I have looks like snow haha.
You can also try adding a border (either stylized or subtle) to make the cover stand out on the screen to people browsing stories.
I also think preferences may vary depending on if you are in RR dark mode or light mode...?
I really like the look you're going for!