If you want colour a different coloured rug would work eg Aqua tones. But for black and white tones the rug you have is great. The pattern draws you eye and adds to the room

What about this one? http://berkowitz.com.au/product/tina-sofa-bed/ We bought the armless version for our small study: http://berkowitz.com.au/product/dora-sofa-bed/

I really like the rug and think it goes fine with furniture. Love your dining table and chairs too. Agree not to have the patterned blue throw. It seems to me the furniture placement around the rug is a bit off. i.e. There's something in each of the 4 corners and then a big circle in the middle. I am by no means an expert, so feel free to take my comment with a grain of salt.

Hi, I would do a bigger lounge rug, one that extends to the base of or under couch but stopes similar to current in other directions. I’m not a fan of dining rugs as diff to keep clean and get fouled by chairs. I think you need to look at the dining room furniture, both the varying styles and placement, it does not appear cohesive. At moment putting a rug under table could help bring the attention to that area. Changing or moving the other furniture and dressing table may help that too.