You could add some wires or pipes in that area, or maybe put in a few wedges to add some layers to the door. You could also put the SCP emblem on it and some small lights.
Yea, this looks dope, like @WismPlay said, you could add some wiring or piping. I also think you could put some small lights there, or when it opens, a small red flashing light and a weird alarm sound, other than that the door looks great!