Varying Arc Centerpoints in Each Profile Division

Hi everyone. I need help with my definition. I’m trying to design an Atrium bulkhead whose curved part gradually changes from concave to convex or vice versa when lofted. But I don’t know what parameters to add in order to give variation to these arc center vectorpoints in every division. I’ve attached the gh and 3dm file here. I hope you can help me out. Thanks a lot!

Orient Curve to (31.3 KB)
Bulkhead Practice.3dm (70.2 KB)