Could you describe what are you aiming for, if you go for specific feeling you saw in other work, maybe put it as a reference (for us to see), or at the very least make a final camera position.
Currently this is a bit all over the place and confusing in what is the main point of this picture. Since it’s all very dark, you will naturally go for the brightest part, but the brightest part lights up…nothing. Our eyes are literally atracted to nothing.
I feel you tried to make something like this:
http://www.creativeshrimp.com/wp-content/uploads/2016/01/area_light_1000_samples_01.jpg
So, I almost lost my train of thought, but if it really is something like above I can see two ways to go.
Position the camera in such a way that the light is lighting up the main object of the story. While everything else serves as a bg.
Or leave it as is, but brighten up the whole area (in case that everything is interesting and you want viewer to look at everything). Take the pic above as example for this case. You see that everything can be clearly seen, both the floor, the roof, the cupboard, even rubish etc.