Designed Mia's mom and younger brothers since they'll be fairly important in the episode I'm working on. For me, it's always a fun challenge to design family members.
The three in the middle are identical triplets. Since I have an aversion to giving any two characters the exact same design, I gave their facial features and body colors slight tweaks on top of the outfit differences.
Originally the red one was supposed to wear green and vice versa, but I realized partway in that the outfit colors I assigned them are basically the Powerpuff Girls (or maybe more accurately the Rowdyruff Boys) and changed them to fit their personalities.
The youngest brother, who feels overlooked, was given an intentionally bland design. With the mother, I was trying to go for a space princess vibe. She kind of sees herself as that in a few ways, but that's all I'll say.

Mia for comparison.

Edit: Since I haven't posted them anywhere else yet, here's some ladies who are also important to this episode. Altogether, that just about covers the supporting cast.
