Riviera would blend nice with the walls

But like the others said, go with what you think looks good^^
For me personally, it would be too busy the way it is right now. I like letting the furniture shine by keeping the ground and walls somewhat basic.
The walls are really cute though, and since there aren't many wallmounted furniture pieces, keeping a wallpaper with a pattern is nice
But the floor being so "wild" too, is just too much for my taste.