Surface from curves / lofting

Does anyone know how I can make these curves to a decent surface…!
That I can continue working.
I’ve already tried and ‘lofting’ and ‘surface from curves’, but no respectable result …


You have a combination of open and closed curves, and curves going in two different directions that don’t correspond to how NURBS need to be laid out.

Best bet would likely be to smoothly close off the open red curves and loft those, for a start.

+1 as few new curves as possible with few points using history. Use your curves for target.

Edit: Lofting with history allows you to edit curve points and curve position while the surface still exist. Now you can change the surface to adapt it to the position of your lines. This enables to create a less complicated surface.