I kinda imagine that Merry’s room could be quite cute full with some pillows and stuffed animals on her bedroom, while having much more of a “normal” appearance in the rest of the room, while for Renko's room would be much more “normal” in terms of design, but I think she could also have some Plushys in some parts of her bedroom... (also, I kinda think that this design could fit her room better, however, I would think that Zun would disagree on that, but a Person gotta's Dream, right?)