take this image keep geometry elements and everything in the composition as it is do not crop zoom change orientation colors lighting or materiality of the composition in any way your goal is to merely upscale the quality and resolution of the image bringing more realism to the composition at the same time keep the soft effect of the render and colors instead of saturating them too much especially do not make them darker in the process keep the original colors and softess of the rendering effect do not increate saturation too much keep the light colors effect of original instead of increasing contrsat too much flooring must have a matt finish the curtains shouldn t be light and transparent but opaque and heavy remove white curtain no more double curtain and leave only the beige one and make it puddling style since we ll have only one curtain for it to show better you may extend it a bit so it appears in the render