That artwork is fabulous. I think it really suits the room actually - just a few tiny accents of colour around the room and it will be very very nice. I love the cushion suggestions in the above by asquithoatley. Some low, small cement candle bowls with a touch of painted colour could do the trick to tie the artwork to the coffee table.. and a dash of colour or white on the table would do nicely. The table and the artwork really hit it off in this room nicely.

consider tall bookshelves around the tv with a big artwork or mirror over the drawers but, depending on the size of the whole room, the drawers and art may suit the wall to the right of the front door and the bookshelves could extend further across the room...check "TV wall" in photos on HOUZZ for lots of inspiration

I think some shelving would look wonderful, keep the styling quite simple so that your eye doesn't get pulled away from the TV when you are trying to relax. A couple of floor plants either side of your entertainment unit would keep the electronics company and finish off the look quite nicely.

oh that art over lounge is old & need to replace bc sick of looking at it. also can’t change placement of the clock as there is a bracket & dont want to patch & paint the wall. The other wall in dining room will only reflect another wall so not sure but im going to buy them first and play around with them as I’m a visual person. also what colour would you recommend I go? ideally I would love to change my curtainS but can’t afford to do so. & my rug but I have an old fur baby who at times has accidents so going to wait on that for now. Was thinking of painting my antique tv unit & table white; what do you think?? Btw... chairs are brown not black.