A covenant ghost from Halo. it is built to minifig scale, the ghost may look big to a minifig, but if you check out actually pictures from halo you'll see that they are bigger then most people think. I got several of the rare purple elements for this model from the Knight Bus and Mini Knight Bus lego sets and the large light purple windshield came from the old LEGO life on mars martian base.
I really like this. I think what won me is the everything shown in your top shot. Your boost plates (the vents behind the wings) need work, as dose the rear armor. Other than that this is easily in the top 5 on MOC pages. I would like to know how you managed to attach the front guns. But really, you should check out my stuff, and leave a review.