Dear client!
Hope you are doing well in this particular situation.
This apartment has a structure with retaining walls, that's means we can do just a few interventions. The only intervension i made is for a door in the walking closet in the master bedroom. I deside for a walking closet in the bedroom than a toilet because i reorganized the bathroom.
I put the shower at the end of the bathroom to a have a larger one. In the living room i used the larger space for the sofa and tv, and near the window i used the space for the study corner and a library.
Also i put some ideas for the interior design, to have an idea for the colors that i choose light ones and and warm materials because the window are not to large.
Hope you will like my solution! Best regards!