I am afraid that is very difficult to have the same result than the first blue image following!
(Best will be to redraw ! :)

You can ehance some regulates inside Instant meshes but...

The Createfrom file will be the better result ... no time now for continue!

Here the SubDBeta9 with small Subd (16 %)



This is just a mirage! :) And a miracle because start image is so devasted! ;)


I am astonished! :) Bon courage for make the same in 3D! Because here it's 10 seconds! :)