so from what I see on preview I like the output of this when pre-blur and smoothness is set to 1.
but it seems I found a bug also
below is the output i get when I run it with those options
not using recover details btw if I do the red/yellow bits disappear and seem to be replaced with black
now if i lower radius I can see this effect also in the preview
gmic is 2.2.0, I didn’t get a chance to try this before now so not sure if it worked on previous version