one thing you might consider is the bottom...it looks like a flat plane. This could actually be some sort of high-tech locomotive (another idea..;) but I'd do some extrusions, expanding, etc., to give it some depth, and a more finished look. Keep em coming..;)

I wish I'd said that.. The Staircase Wit

anahl nathrak uth vas betude doth yel dyenvey..;)