The 4th challenge just started over in the starfighters group on flickr and of all the entries so far, Cole Blaq's Star Piper SF08-15 is my favorite. The use of the technic wing pieces as a base creates a great seamless curve. The engines are also great. Kudos to you Cole. Oh and did I mention that the challenge is to create an overcompensating starfighter? Cole's fills that spot perfectly.