I think it would be MUCH much better without the text. The lighting ins decent, But try burning the render. Another good lighting effect i learnt is to create a new adjustment layer (brightness and contrast) and up the brightness to about 10-20 then take a black soft brush and brush on the parts that don't need lighting.
Made a background, and added a bunch of FX, THEN added a render that I chose that might be able to fit in with the rest of the piece. Seems the result was better than I expected rofl