For the living room the things are simpler, because the space is bigger and you have enough room to place spacious paints and decors.
First of all, I would choose for a custom paint, not too big, but also not to small. *if you want the smaller version you can make more of it;
Another good idea is to decorate your own candles and also the table where you put them, use some fake leaves, some colored pinecones, maybe some acorns;
The last, but not least idea is to put a cozy blanket on your sofa.