This is really well done. I really like the main melody and the whole piece in general. I can actually link the piece to the setting you've described in the description. The only criticism I have is that the sections where you've used the trills (I'm no expert I'm not sure of the correct term, its around 1 min mark) , the trills feel a bit too overpowering (probably just the volume of that track). But I have very little experience with midis and arranging/ composing so my apologies if this is rubbish ;)