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.

You need art on the wall and a rug and color! Your first step is to purchase an inspiration piece. That piece will either be a rug or a large piece of wall art. That sets the color palette for pillows chairs windows and walls. Wall color is last. Find out if you can have electricals inside the wall. I am guessing you are not in US and house is solid brick or this is a basement space as it looks quite industrial.

You need to specify what kind of help you need.

Hello Soumya, If the make is similar the changed colors may not look as great. The best bet would be to wait for a couple of days as this is festive period most of the goods would be out of stock. But they would be addding to the stocks soon. Add it to wish list , if the website allows you to... Another option would be to go with accent chairs as you mentioned already. The make and finish being different wouldn't matter as much. And the last option is to get it customised same as existing one with a local vendor. Costly but more durable. Thanks, Nitin Cornerstone Designs Bangalore.