You've managed to replicate the general Amnesia series vibe quite well, considering its minecraft. You've also taken certain aspects further than I was expecting and even shown me some things I hadn't thought to do in map making or been aware were possible.
I liked the ways the woodland mansion had been adapted and the designs of the other sections you built yourself.
The first couple of early enemies were a bit annoying to deal with, but since you can just lead them to somewhere you don't need to be and then leave them there, they also didn't ruin the map.
Given the pretty clear conveying of the story within the map itself, I think you're better off removing any mention of the ending, or what you need to do when you get there, from the map's description. Avoids giving away what happens.
I'll also say that I appreciated the humour and creativity of that particular... enemy encounter on the way to the chest key.