A Dread with Treads!

Woot for cheesy titles! Well yesterday during classes (what a great time to day dream, right?) I was doodling some ideas that were going through my head when I got this epic vision of a dual-autocannon dreadnought rolling over some Chaos Marine with treads. When I got home I had about 2 hours of downtime and didn't have much to do, so I tried building this thing with posterboard, foamboard and whatever bits I could find. In the end I have to say I'm pretty happy with the results. It would've obviously been better with an actual dreadnought torso, but in the end I think it looks pretty cool and I am going to start painting it tonight too. What do you guys think?