A fun little two-for-one, I don't think I was properly able to get both of them made in such a way where if you actually lined them up next to each other the images would perfectly line up where one image ends the other begins.
Outside of this, regarding the actual builds, I've known for a while that I was going to want to build the twins as Brawlers (for those of you that just play normal D&D they're basically like Monks that get slightly different abilities and are not required to be Lawful, though I don't actually know off hand if that's still a thing in 5e... regardless, the point is that they do Flurry of Blows in a manner very similarly to Monks). Basically every fan project and animation I've seen of the twins has shown them to be the "get on opposite sides (aka flank) a target and let loose with a flurry of strikes" sort of combat style that's incredibly difficult for people to deal with, and that style of combat is actually REALLY easy to port to tabletop, who knew!
The real question became how, exactly, I'd make them, and if I would just go about it the "easy way" and just have both of them be complete carbon copies of each other. Ultimately I decided to sort of split the difference a bit and make them mostly similar, but just different enough that there was a justification for separate sheets. Fuwawa's build is a bit tanker in HP (fluffier) and is more of a supporting role, while Mococo's a little bit more spastic and attention-seeking (WHAT ABOUT MOCOCO?!), drawing enemy melee attacks away from others and towards her higher AC.
Probably the most contentious part of both of these statlines, however, will be the bit of creative liberty I'm going to be taking with all of Advent. I haven't actually mentioned it in this thread specifically, but due in part to Pathfinder just not having a good corollary for what a "Demon Guard Dog" is, the very intentionally mysterious nature of Advent as a whole, and most specifically the very sus backstory that Shiori in particular has, and I really could not resist myself in going a teensy bit off script and "retcon"ing the twins as Celestials instead of Demons, angelic figures who used to be Demon Guards, true, but more in the sense that they guarded AGAINST the Demons, not AS Demons. The question then becomes "okay, well why do they call themselves that, then?", to which Shiori quickly becomes the easiest fall guy to turn into an even bigger villain than the official Holo narrative has already made her. I just hope that, on the off chance she sees it, that it doesn't hurt her feelings when I get to hers and I've made her into some kind of diabolical mastermind.