I think you can get pretty close to those shapes using the Ruled Shell. See this youtube video:
http://youtu.be/R-yIe3cgPys
and/or all of the videos here:
http://www.archicadwiki.com/ShellTool
To control the lofting / bulging, you will probably have to create some intermediate slices.
You won't be able to have it appear to be made out of loosely assembled brick as in your image - but could approximate that with an alpha-masked texture image applied to the final result perhaps.
Cheers,
Karl
One of the forum moderators
AC 28 USA and earlier • macOS Sonoma 14.7.1, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB