Take a look at your own wardrobe. Pick some blouses or a dress that you really like. Study the color combinations. Look at Light and Dark, how they interplay. Make a quilt block or pillow top that repeats your favorite dress colors. If you like neutrals and tend to dress in black and cream or khaki, well, that's good too!!! Or, since it is your bedroom, make a coverlet that matches/coordinates with your pajamas. Whatever you do, lay the fabrics out many times over before you cut or stitch. Play. Think of fabrics as your playtime. and enjoy every moment.