Aaaaaah
I think you are the first one I saw drawing them all, maybe I saw dad and/or mom but never big brother and sister! And they are absolutely on-model too ^.^

Should have erased the pencil a bit better tho, now that I look at it lol. This one was truly a fast sketch, like less than an hour, I sketched first the big sister's head, then the brother's arm, the brother's head, and from there I anchored everything else. Wasn't thinking of anatomy or anything, just getting some good silhouettes going ( I like loose clothing for TBH). That's why it looks a bit rougher than the others.

Plus been doing the Alphys lewd I mentioned in my previous journal, just need to add the cute christmas hat and it's ready to start colouring. That one was funny, I did two pages worth of sketches for it and ended up picking the very first one I did, plus it could have been even faster but I was a dumbass yesterday playing WoW 😂