Killmainham Jail, Ireland
This has a nice concept going for it. Seeing a light that you can't reach, not knowing what is really beyond it anymore. Also, the monochrome works really well too, to keep it mysterious and cold. A few things could use some work, though. The perspective seems to be tilted slightly, and could be straightened out. The angle of the photo could be changed to help composition, too. By that I mean, the doorway should be a bit further to the left, and possibly higher. There is too much uninteresting space on the left side. You could achieve this by cropping some of the left and top edges out.
I like this photo, good work!