Leather sofas can really dominate the room and can give an overall cold feeling. I would add some earthy elements, like a wood coffee table with glass or metal. Go to Restoration Hardware's website and look at their sofa room scenes. And I'm sorry I think the art is too harsh for the room. That's all your eye goes to in the room. too overpowering. I would look for something softer or maybe a cool mirror and I would add color to the room with pillows and some colorful lamps. I also think woven blinds would look great. They add warmth and give a finished look. The color of your window treatments should contrast your wall color a bit, not match it or else it starts to look generic and blah.. You have warm walls, warm floors and the woven blinds, like Hunter Douglas brand would pull it all together for you.

Congratulations to all of you. Its a wonderful platform to be on and you all are doing a great Job. My favourite Design Style is 'Minimal'. I just have this strong connection with simple, subtle and elegant things. Cheers:)

Could you post some pictures please, it would help, and you can get more advices.

It 'might' look a bit odd. Why not have a curtain and slide it when you need day light. It will be better if you post the pics of the room.