Good work on the atmosphere, but you should either use a different light prop or have brighter ambient light in that room. Such a lamp would not have such a narrow cone of light, but much broader. I think I can see you already used a normal light entity, too (light on the ceiling), so perhaps you should experiment a bit with some more light.
And the spotlight effect - make it wider, since the light on the walls does not fit the narrow cone.
I am really interested in your scene. I like the rocks.