Prototyping a stool

I am learning about the making of multiples, and exploring jigs. I am also exploring my own aesthetic, pulling inspiration from the tori-i gates that stand in front of Shinto shrines.
Here are some photos of the process so far, basically I am setting the groundwork for more of these to be made easily.

Some of the models i made for brainstorming

The drafting table we set up

A taper jig to ensure all the legs are the same shape

The mold i used to vacuum form the seat

The seat - made of layers of 1/8 inch baltic birch

Finishing off the mortises by hand

The tenons - compound angles are difficult!

The piece starting to come together

Gluing up the cross pieces