Rebecca and Kirby asked about rugs and cushions and where to place them..
It's best to buy your sofas first and then your rug (Kirby has already done step 1)
The most common rug size is 160cm x 230cm, but these days the stores stock just about every dimension.
In terms of sofa placement, a L-shape configuration is a good idea if you're working a TV into the space. Bear in mind that when you walk into the room, it's best to make the sofa your focal point.
Once you have your sofas, determine what size rug you need. If you have a large space and want to make it feel cosier, tuck the rug about 20cm under your sofa.
If you have a small space and want to make it feel roomier, push the edge of the rug just to the edge of the sofa, to make the space feel larger.
Cushions can often take their lead from either artwork or favourite decor pieces
Natalie wanted to know what to add to her space...
Your space is crying out for a rug - it's the first thing I'd do to warm up those tiles!
As a whole, the space needs pattern and texture to make it feel more inviting.
Consider a black and white patterned rug and bring in some warm red and orange tones in cushions and throws. Metallics like bronze and silver would work well here too.
Pattern is your friend, and a floor lamp in the corner near the TV would also help.
I've attached a picture of a theme that would work wonderfully here.