Hey! I read your story, and I've got a few tips.
First of all, you could write longer episodes. Tapas is bitesized, yes-- but we still want some meat! We don't want to have to wait between episodes and only get three paragraphs. You could do with expanding upon your writing a bit.
Second, I'm confused. Your character starts in prison. That's exciting. I like it. But I want more context. Now, doing slow reveal is fine-- but you have to give us enough that it makes sense. Where did the hole come from that they escaped through? Is it all Shawshank redemption style, hidden behind a poster, or what? Did your protag dig it themselves? I have so many questions, but you don't answer them.
Nice cover, by the way.
I hope this helps!