Looks like you found Nemo!(Yeah, I'm lame.) That does look majorly complicated, but that gives me an idea... you could get a similar aesthetic by splitting the existing gores in a corset into horizontal stripes/triangles for more interest.
I think those are just made of the basic up-down pieces, with a bust gusset and a hip gusset, then some flappy bits (technical term, there) that fold in toward the front.
I have one, so not so hard. You just make a copy!