First of all, I don't think that furniture is comfortable enough to sit and watch TV, so the TV should be remove from that room, the purple wall paper and the purple furniture is too much, you should consider another color for that wall and the furniture against the wall it doesn't look good. What is that room at the end is kind of dark and I cannot appreciate exactly what is the purpose of that room. I'm a firm believer in skylights, we have skylights in the laundry room, kitchen, living room and office, they make a big difference. (if you cannot have skylights (or tube lights) can lights are a great option. There are a lot of great ideas from everyone. I can't wait to see the after photos.

Cost is a factor also between papering and paint. 20 years ago, I painted and wallpapered everything myself. 10 years ago when I moved and bought a condo, I hired the papering and I did the painting. Last year when I downsized, my handyman and I just did the painting. No paper. I have found that at my age papering is too much for me. When I get down I can't get up and when I am up it feels too good to get down :>)

Need help in furniture placement

Such wall can be done as.... Both Corners... One Design... Console Table in Centre.... Keep small flower vase on C Table... Make Rest of Wall a Combination of Light & Dark Wall Paper OR Mirror above C Table OR Wall Hangings like Family Pictures, Kids Pics etc..