Try a mid-century modern rug like Hemphill's Rex Ray Area Rug Collection or Jaipur Traverse Caracas. I looked up 'mid-century modern rug' and chanced upon these on Houzz. I like the muted colours which would soften the cream on brown. The mid-century motifs would highlight the mid-century chair. Good luck!

Open bathrooms look great and make the room look bigger. On our catalogue we have some vanities that fit the open style like a glove! Take a peek!

The above counter cabinet doors are MDF 2 pack poly with metal mesh inserts and the floor to ceiling cupboard are MDF 2 pack poly with v grooves. Does that make sense?!

It all depends on your other choices. What colour/type of cabinets, benchtops, flooring, lights other furnishings in adjoining rooms etc. Can you give us more detail?