A Dark Room This is a set

This is a set up scene to hopefully a short animation I want to create . I want the scene to be black and white and the light coming through the small hole in the wall to be the center of attention at this time .
I am fairly new to Blender and this will involve a large learning curve for me to finish the animation .
I feel I still need something on the wall to the right of the door , but , not sure what . I thought of trying a mirror but there is really nothing in this set up to reflect . This is my first project to post here and any crits and usefull tips will be much appreciated.

http://goniafamily.com/animate/0001.jpg

It’s very pale. Try to not brighten the image without using lamps.

Maybe try a bookshelf.
If you reverse the side of the door that the hinges are on, you could put a light switch there.