Very fun room and great furnishings! I like the art where it is and I also like the chair. Adding a high back chair (IKEA) would be nice. It's very mid-century modern and the grey fabric makes it more subdued. A mod rug (Crate and Barrel) to tie in the colours of the couch and chair. An oversized ottoman (West Elm) as a coffee table with a pattern that mimics the fabric on the chair would add to the eclectic design of the room. A faux mongolian fur ottoman (West Elm) somewhere in the room. You seem to have a carved coffee table - if it's not too big I would use it next to the chair and move the smaller table next to the couch. If it's a good size then use it as the coffee table. Having a rug under it will make it stand out from the dark floor.

Thanks Lydia - Love love love the high back chair! Is it from Ikea? Also any suggestions on where to find a similar type faux mongolian ottoman?

Thanks Abbyjean!I was just thinking this weekend about playing with blue - great idea thanks!

You're very welcome! Surprisingly enough it is from IKEA! I edited my comment and added that the faux fur ottoman is from West Elm.

Abbyjean & Lydia - Abbyjean suggested blue and Lydia suggested a high back chair - what do you think about this one? Thanks

WOW! That chair looks MADE for your home!!!!! I love it!

I had chosen grey because it's not so predictable (with the paintings) and brings in a neutral. It also pulls out that colour from the chair but if you like this blue chair it could definitely work! It has great lines like the rest of your furniture.

I love how the blue would pull the eye/color across the room.

Some ideas......starting with your green sofa!

Lamp, rug, floor lamp, large modern ottoman instead of coffee table - maybe in cowhide - something unexpected to repeat the black and white. http://www.crateandbarrel.com/decorating-and-accessories/all-rugs/negril-rug/f50586
Shelves that have a decidedly modern component - floating ledges? to bring height and balance height of piano across the way. . .

Thanks all for the great suggestions so far please keep them coming. I am going in search of high back chairs to start and a nice ottoman rather than a regular coffee table. Was also considering a trunk as a coffee table.

Would specifically appreciate any suggestions for an ottoman.