Actually i mostly dont criticize the style because it always depends on the request, or personal taste, nor i wont critize here too.
Surprisingly, i like the mood in your scene, sometimes underexposure gives good ambiance (my taste :) The underexposure given like a shadow area which might be possible in reverse angle of sun at afternoon hours, so i like it.. Anyway, would you mind sharing material information for the curtains ? I like the transparency amount etc.. Good job.