If you want to highlight the staircase wall then your could use earthy colours such as a yellow ochre! The wall could be enhanced even more by using suitable frames and making a good collage composition for all the photos that you have (I can see many lying on the dining table). This colour would match well with wooden furnitures

My first question will be: what is the utilities of this room? Who live in it? Age, gender? Is this room oriented by the North or South? East or West? What do you want to feel in this room? Serenety? Concentration? Spirituality? Energy? After all this answer it will be easier to help you. :)

Hi, You can use either of the color options for highlighting the wall (headboard side or the media table ) in your bedroom, leave the rest of the walls in neutral shade of Offwhite.

Paint ceiling with white color Have perpherial false ceiling , install strip LED lights , this way you can have indirect day light .