That’s looking great, Ross. The splayed legs and organic leg shape are so visually interesting. There are no boring chairs at the Leidy residence; that’s for sure.

I definitely see the open ray mouth, particularly given the raised ridge in the seat surface. All you need now is those paddle-shaped appendages (which I now know are called cephalic lobes or fins) on either side to complete the illusion. Of course, they’d have to be  mounted with ball joints to make sitting on the chairs an interactive experience. 😀

That online calculator looks very useful.