Bumpy Curved Surface / How to Combine Patch or Loft with Base Surface?

Does anyone have suggestions for how to combine the bump-like patches with the base surface in this definition? I’m trying to make a single lens-like surface with bumps that diminish in size (radius and height) based on their distance from center. Alternative approaches always welcome. Thank you for any thoughts!

BUMPY LENS_191012.gh (23.1 KB)

Found a related solution by modifying an @HS_Kim script from a little while back (thanks again). Still interested in other ideas from anyone out there! BUMPY%20LENS_RESOLVE|690x390 VORONOI LENS_NORMAL BUMPS_191012.gh (43.2 KB)