I have only ever seen this "point of source lighting" effect done well one or twice. Almost always it looks like an explosion in a chalk factory. Not a fan, sorry.
Essentially, you need to do alot more reserch here.
Best to satrt with some simply google-fu. I typed in "dramatic lighting" and was rewarded by several examples of point source lit pictures.
Essentially, your model looks like its got a corrosion problem.