Pre Viz - Modelling Tubules and Vesicles

...So the Tubules and the Vesicles are the vehicles inside my cell, they carry round the protein and, well...here's their modelling progress/process

In my animatic the though the Tubules and Vesicles are two separate things with the same function, they are represented as one thing, so I decided to make to separate vehicles, keeping in mind they'll be in a underwater type environment, so I was thinking along the lines of submarine....then I started making the second vehicle, more sort of alien spaceship and went with it

These are some doodles...just getting around how they'll look like