I thought I'd share a couple of the design pages from my first Rainmaker project (Barbie in a Mermaid Tale 2. The images are property of Mattel.
Here are a couple giant, ancient shell elements in their original production sheets that were passed off to modeling and surfacing - we always tried to provide some material reference or our inspiration for the various parts.
This is a character I designed that was modeled and surfaced by Travis Smith. I then did a paint-over to determine how to tackle this electrocution effect from the script.