You have a nice, neutral palette to start with but now you can warm it up with your furniture and accent pieces. Think creamy warm whites and taupey greys, brushed gold metals, natural wood in accents like a small side table or plant stand and adding plants for greenery. Most likely you will have a neutral coloured sofa and chairs so choosing accent pillows with warm tones will help. Also layering different textures with your soft furnishings, area rugs and throws helps. Layering your lighting is also important - have task lighting but also table lamps and softer ambient lighting. Even something as simple as choosing warm coloured light bulbs in fixtures will warm up a room.