It depends on how big the room is. If the room allows for two distinct sides, one dedicated to each child, I'd go that route (and they'll love having their own space). You'll want to keep the theme or color scheme consistent throughout though. For example, you could do a nature theme (using green as the primary color) and have one side with flowers, birds and butterflies (girl) and the other side bees, dragonflies, and other insects. Or you could pick a color combo that you really like that splits between the two and then find accessories that pull those colors together (like pink and orange or red and aqua). Good luck!

Did you see this post? I really like Ayala's solution to the problem https://www.houzz.com/discussions/we-have-a-three-bedroom-house-and-two-ki-dsvw-vd~93509