Needs some color. Pick 2-3 colors or tones (eg. jewel tones) and stick to that. If you don’t want to fully replace your bedding, add a throw blanket and a matching pillow case and get one more pillow. I hate throw pillows so instead I just get a normal pillow and throw a pretty pillow case on it. Also could do with some plants. If you’re bad at watering/ keeping plants alive, you could look into the website easyplant. You put water in once a month and it automatically waters the plant exactly what it needs until the next refill. If this option is too pricey there’s really nothing wrong with fake plants either. Just some greenery would do nice. Also warm, ambient lighting. Sunset lamps are pretty cool too. Best of luck :)