make a photorealistic image with some natural lighting decoration in the cabinet books and vases or something and a soft textile on bed do not change anything in materials or add extra spots in the ceiling only use the existing materials and interior items spots in cabinet and ceiling in color gunmetal put a handle on the door door is gunmetal put a soft light fabric on the fauteuils and keep the wood of the cabinet light grey oaked the coffee table can be glass with a metal frame