I've had a great time playing with your room, Nette--thank you! Rug visualizers are a great way to see what rugs you like and don't like (rugs-direct.com has a good one). Here are a few of my experiments:

Bold and graphic:

Asian-inspired:

Softer, traditional:

Picking up colors in the existing poster:

Natural neutrals:

Wallpapered accent wall:

Minimal changes:

Organic and green:

Hope you enjoy looking as much as I enjoyed creating!