Keep it up, Homarusrex!
This is a piece of "fanart" for him, who is just fantastic. Go and check his gallery right now!
Anyway, I wish I could color this, but I don't know that much about it.
By the way, I really enjoyed the process of designing those flying machines, wich I actually like so much. I realized that I like clean linearts. Not like this one. Ah, and love the exagerated prespective of this!