Help with a specific shape

[Anonymous]

Hi all, hope you're all doing well!

I'm having problems trying to recreate this type of ground topography in Revit. I more or less want to create the exact same shape, having these "hills" come out of the ground level to form these light-wells as windows. Is there any way of accurately achieving this on Revit? Here are a few images of what I want to replicate:

Thank you preemptively for the assistance!

[loboarch · Accepted solution]

You can build a conceptual mass in that kind of shape.  Here is an example that is similar made with 4 circular profiles lofted to make the form.