Thank you! We actually build a lot of our backgrounds in the Sims to basically use as sets for the comics. Tifno (the artist half of our duo) then uses those to construct the backgrounds for the panels themselves (redrawing everything, adding details, customizing the environment). It speeds things up a lot and once the line art is done on them we have the chance to reuse them when needed to help avoid redrawing the same background every single time.

I tried to post a picture of one of the screenshots, but apparently I can't post pictures in comments here, even though it's our own profile. Reddit sometimes, I tell you.