This blows me away. Once you finish, you should publish your pattern. I love turtles but I wouldn't have the patience to do all you just did, let alone pick out the fabrics and then make it. Can't wait to see it finished, so please post. I took the easy route and made Toni Whitney's Sea Turtles here:
https://www.quiltingboard.com/pictur...b-t303350.html