Although I loved the surreal elements of your previous title, there's a lot here that stands as a clear improvement. Writing's good, the art is good, and though the school corridors are largely empty, I didn't really feel lost.
I feel the story could use a little more mystery to it to make us question Ms. Brown's intentions. It would make the ending more impactful. I also still think you should make your own original narrative rather than pull from a pre-established world, but I appreciate that it's a self-contained story.
Keep it up!