a couple of sudgestions?

looking from the end, you have V'Ger in roughly the shape of the 1st picture...
i have noticed that the "valleys" between the fins running along the ship are too deep compared to the ship in the movie and they shuld look more shallow like in picture 2. (but still with nice curved angles)
one more sudgestion.
the valleys in between the large spikes shouldnt be raised like you have them currently, they are level with the valleys running along the length of the ship.
you can notice this when V'Ger fires it's large plasma torpedoes at Earth in the Directors edition of the movie