Designing kids bedroom

Hey,

My daughter is now 2 years old. We are designing her room in our newly bought home. Her room is next to our room, which means we could always reach her as fast as we can. We are very confused when trying to design the room. We know this room is for years to come, which means designing a room that she’ll love is important.
This article by a townhome builder gives a nice insight into this problem. It says lighting and choice of a good color will help children feel relaxed and safe. Safety equipment are a no brainer. We’ll not put anything that’s dangerous in her room. Some posters of her favorite cartoons may make her excited. What else can you suggest us to make our dear one a lovely room? Any good suggestions will be really helpful.