Hi Keith! It really depends on the mood of the room. If you want a warmer summery feel, you could pull out that light yellow tone in the pillows, that will go nicely with the grey. If you are looking for a cooler more relaxing room, then you go with the blue or a light blue/green like jtbino suggested. Good luck! :)

You can paint the inside of FP opening charcoal and then I would go for a blue/grey and not greige. Those colors tend to be very dark. You have black furnishings and a blue/grey would look very fresh. Your art above FP has blue in it, so replace rug and get some pillows for sofa that will bring in the colors of the painting. Why not just put in some shelves, one big enough to hold tv. That would give a more open concept to room. If you need one enclosed to store components, that would fit also. I would not build up too high on the wall.

I would move the sofa to the opposite side of the room (providing there is not a door on that side, cannot see but a small over lap wouldn't hurt) move the armchair at far end of room near to the fireplace at a slight angle, either toward the fire if not watching tv or the other way if something good on the telly x. (everyone can enjoy the fire then). Move the TV from the corner beside the fireplace to the corner where the smaller arm chair sits at present in the photo. Then less focus on TV and more focus on your gorgeous fire place, but TV still accessible to watch. This would then free space either side of fireplace to hang pictures. if you enjoy your art work hang it, it makes your home your own. I would place similar themed pictures of the same size just below the level of the top of the lintel so the eye focuses on this strong line first, at the same height on either side of the fireplace. Follow this top line of frames around the wall and hang other pictures on the walls between the windows on each side of room (behind sofa in new position) The TV unit is quite large, perhaps painting it in a very slightly darker shade than you walls will detract attention but only if this is not a well loved piece of furniture. An oversize (or largeish) footstool in the middle of the room to put your feet on when watching the fire and double up as a coffee table with a beautiful large tray left on top to put your coffee on, flowers or a small collection of books. If large enough the person in the armchair could put their feet up too. Just an idea. No idea of you view outside or where your power points are. If you want to further soften the room contemporary pelmets above your blinds would be nice in the same fabric and picture lights above your pictures create lovely ambient lighting glow. lovely room though

I would say that it depends on how 'rich' you want your room to feel if you like the velvet then choose the cushions on the right but if you want a more neutral feel then go for the ones on the left but I love both so either one will be good