Here is my finished Venom for the BOLS venom competition. Once the link is up to vote, I will definitely put it up.
I wanted to make a venom from all leftover parts, so all I would have to buy is a vyper. The warrior is magnetized for easy removal/transfer to another vehicle. It actually went together rather quickly, and this was also the test color for my new dark eldar army. I have two blue armies and a green, so I wanted a red army. I think the colors look pretty good.
I also wanted to do something other than edge highlight all the armor plates like most dark eldar vehicles. Its a great look, but takes forever and I wanted something different. I went for a quick and nasty dry-brush/streaked look. I think I will clean it up a bit, but was in a hurry to finish the model. I really like the new models and can't wait to put together a bunch of warriors and wyches.
I think the key to designing dark eldar vehicles is to make them spikey, streamlined, and elegant. If you get too over-the-top crazy, it starts looking too much like chaos. Dark Eldar may be depraved, but its a classy, refined depravity.