Give it some life. It’s important that you have fun & experiment. Allow yourself the freedom. A dramatic splash of red or vibrant purple can make a real statement!.
Pick the room to work on & then get let’s get started. Take note of & work with your room’s focal point, Sometimes rooms have natural focal points - places where your eyes travel to immediately upon entering a room - a fireplace with mantle, an enormous ceiling high, wall-wide built-in bookcase, or bay window with a window seat or view of the garden, or over a valley, lake, or the sea.
Here’s a vital tip - I highly recommend that you avoid making your TV wide screen & entertainment centre the focal point or it will make your room look like a temple of worship to those items. Unless, of course, it’s a specific purpose built home theatre room.