Trying to rebuild a curtain like facade from Sanna

Hello, guys, I am trying to rebuild this facade. So the hard point is the various on this facade. Some bumps are far away and shallow, and some bumps are deep and close to each other. I tried to manually do the curves, but it is a little bit hard to do a natural result. Also, this facade need to flow certain form. Thanks in advance for your help and suggestions.

that is a single curve with a lot of points pulled into shape and extruded.

you can then flow that surface onto a different surface to get your final form.

import the image using the picture frame command and then trace it.