I really likethe enlonged passenger compartment. That really stretches the shape of the venom and makes it more dart-like. The sails, sorry, but just don't work for me.
If the had been smaller and angled lower, it might have worked (i would suggest taking the multi-segmented sails and cutting the first segment of and see how that works),
but this way, the stream lined shape of the venoms "snout" is broken by the harsh angle of the sail.