Hey alexanderH, I was checking your thread here and have a few comments for ya.

1. Polygons are fun, but not everything is polygonal. There are more straight edges in your models than a slide rule store. Make some organic shapes to break up the monotony and offset the angles.

2. Also concerning polys, try beveling a few edges. The main rule to remember when working with hard surface modeling is, unless you're making a razor blade, nothing should have razor sharp edges.

3. As for lighting - If that's what you're trying to center your reel on stop using the Physical Sun & Sky. As a lighting TD, you need to study all aspects of light, from color to temperature. It needs to be your lighting setup, not Maya's. Anyone can press a button to light a scene. Do it yourself. You are relying too much on Maya to do all the work. That is evident because I can see you have no interior lighting... anywhere.

Turn off all lights, then start with your main light source. From there, add fill lighting to soften shadow areas. Also, don't make all of your lights the same color. Lights aren't always 'white' - unless you're taking that trip to the big, pearly gates. :p

Good luck!