Very imaginative stuff here! If I may suggest one thing, I'd lose the rear "wheel "shaped thingies, they look so bulky they throw off the balance of your design, and to me they still look too much like wheels/tires, where the rest of the vehicle is way out there! Compare your treatment of the front wheel area to the rear - the front is much more creative. I do like the VTOL aspect of the rear area, just not the tire-shaped blobs.. I only comment because I really LOVE this kind of creative stretch of our hobby, and want to see this design soar! Here's a thought; take a couple of 1/72 A-10's turbine housings (2 kits worth-can be cheap snap-tites) using one grouped pair per side, attached to the rear sides in the wheel area, connected to each other by a rod so they actually rotate down and back as needed. Add rivets, fins, pipes, hoses, and antennae to taste. Fun stuff!