A final possibility..

I think im leaning towards one of my ideas as it is the one that keeps popping up in my mind and that has the most ideas connected to it.

I'm thinking of doing the hospital scene as i feel i can really create the atmosphere i want in it using elements from my research, and also most importantly create the final scene/image and have it looking good. I can't really explain what the image is in my head so i'll try and draw it and post it on here to see what people think.