And in my opinion, the elevation you want won't benefit from rendering that much. The benefits of a rendering vs a sketchup elevation has to do with material and light, right now your reflective material looks flat because there is nothing to reflect, just a grey background, try adding a billboard or something to reflect behind the camera. Secondly, the lights have very little material to lighten, the glass has a bit of reflection of the light but nothing more. Maybe add a floor plane to show the effect of the lights.
Rob