This HDB apartment is an excellent example of how subtle mix and match can be. What is interesting about the interior is that the designer opts for more modern flooring materials in the dining room, such as tiles, but still sticks to parquet in.
Otherwise, you're absolutely free to decide on a shape that is suitable for snugly in your living room space. Nobody will even know that you're employing the room divider to hide clutter. Somebody does not require a spare room to turn it into a playroom.