To tell ya the truth...i dont think it fits into either of them. 1. They neither have anything to do with the mission of both challenges. 2. I dont see anything that should have to do with the definition of Speed 3. It doesn't realy say anything about something massive in space (for the CGtalk challenge) But that it doesn't fit into a challenge, doesn't mean i dont like it. The buildings are awsome and the sunset is beautiful!Great ship models. CZ