Today's priority was getting a final idea for what Four looks like I looked back on fighting fish and, entranced by the draping silk-like tails they had looked into giving something like that to Four. As can be seen, there are shades of dilophosaurus in some of the drawings which I want to avoid (this is mostly due to possessing similar frilled crests.) the main difference I think is Four's is a lot more swept back. It would give her an edge in swimming. I don't want ot go too overboard with the frills - these will likely be animated as ncloth materials in the animation (so lots and lots of flow!). Too many frills and she might lose her shape in the action. But I believe the most successful adult form is 78. 83 and 85 I believe were fairly successful bust shots.
Perhaps she can retract these sails. We see this shape in its full glory during her escape. It makes perfect sense that she escapes from captivity when she is in her most impressive. She is at her most beautiful and David sees this. As well as this, I looked at the juvenile, which will be a much dumpier and less attractive look. While the adult is inspired by Asian fish, otters and ferrets, the juvenile was strongly inspired by naked mole rats and axolotls.
What is probably needed now is a final concept piece. I have plenty of thumbnail material, now would be an extremely good time to set to work on the final design.