Kick ass. I love tech environments. Great detail. And yes I like the blow up of the mechanical arm design. Good call.
My only comment is that as a sketchup piece its pretty cool but as concept art the composition and lighting aren't helping to tell your story. I barely even noticed the guy standing next to the table. I would love to see the scene a lot darker with most of the illumination coming from the machines and a close up shot of the action.