Good job overall. The pacing and flow felt a little disjointed at times, the story moves between a fast and slow rhythm that is a little disorienting. Also the initial confrontation between the Ascensionist and 507 left me feeling confused as to what happened. I had to reread it a few times before I understood it completely. The dialogue felt a little stiff, but also it's a master talking to a servant so it kind of works. Still I would recommend a little refinement. The time limit probably didn't help with any of that. All that said your prose is really good. The words blend together and you're able to create some really beautiful scenes and moments. All in all a solid piece, good job.