Thanks for posting! I’d say in general, regardless of the room you’re decorating, the most important thing to consider when you start is function. Think about how you use the room and your family uses the room and work from there. It can be tempting to try to decorate an entire room top to bottom, or get the smaller accent pieces first (since they feel like less of a price investment and also less of a commitment), but when you’re starting with many empty rooms, spread the love throughout all of them and start with the biggest, most necessary pieces first.
Smaller necessities and accents will come up after, and as you start to live in the rooms, you’ll now have the added knowledge of what works well.