Really good basic decorating. Now accessorise to give it some finish - an indoor plant to hide the extension cord socket, some artwork on the wall beside the lounge, a couple of cushions on the lounge and something colourful at one end of the entertainment unit - maybe a nice bowl. You can even plan a cosy throw for winter. The greens like Helenscolour used will really cheer the area up, but you could use any colours you like. This is the beauty of your basic colours, you can change the accessories to suit your moods or the seasons. Do you need some end tables at all? A lamp or lamps could go on them for some soft lighting if you wanted.

This is a tricky one! I'm not a fan of a TV dominating the room either. An L-shaped couch could be a starting point - thinking about furniture that isn't always oriented towards the tv but flexible when you do want to watch a movie. We also found having a lower, longer sideboard / tv unit made the TV appear smaller in proportion, so not as focal. Good luck :)

First ,is removing excess furniture an option? Second, why bar fridge in the dining area, that really ruins the look. Seems that you can not move dining table closer to the kitchen because you have light pendant above the table, so can you move piano where your black couch is and couch on the other side of the room instead of creamy colour sofa . I notice the luck of coffee tables and side tables,that's probably why you like to sit around dining table, it is not visitors friendly and doesn't encourage conversation or interaction. I will come back to it have to study photos more. Are the arm chain the other room similar colour to the couch in the dining area?

It really is all about the rug isn’t it. Really sets the tone of the room but must must must be large enough the old standard 160x230 is really a bathmat. Then the art. Thank god I’ve done the rug part in most of my house it’s one of the hardest parts of putting a room together.