Dear,I hope i have made interior that suits Your needs and that You like.
I've decided to use grey wall in combination with white frame mirror and white media console to have that dark and bright contrast.I've kept Your table and chair and sofa too.Wall media unit is custom made and You have all dimensions in project.What You could also do with wall media unit is that You could go with 36cm deep + 2cm doors so you could add 2cm thick board on pillar between shelves to cover it,and of course You don't need to do that if You don't want to.Brick wall...there I've used faux brick panels to cover that wall and break the monotony of simple wall paints.
Best regards.