The design intent is to create a visually clean space with minimum protrusions and recesses. This would help maximise the natural light available in the apartment.
As shown, the partition should be constructed in a manner that allows light to filter through, with wooden battens or glass, since the private space (bed and desk) does not have a window.
Glossy finish/mirror-front cabinets for the kitchen are recommended as they would help conceive a visually larger space.
Also, consider a sliding door for the bathroom, as that would help immensely with the space constraints inside.