Yeah, there should be a minor edit to the cell for D-class. It wouldn't even require it's own update, just an edit to the model. Probably just a stone bathtub with a faucet.
Maybe the intro scene where 173 is standing in the corner, with the gritty darkness surrounding it, with the words "SCP: Containment Breach" as the title. Or Maybe with the logo. Both would be good. EDIT. Um wow, you did exactly what I described. Mindreader much? Hah, jk. IF you centered it, I think...