Floor plan for a hillside house with integrated garage

Hello,

here you can see my floor plan for our house for discussion or constructive criticism.

Thank you

a bit hard to read.
On the ground floor, you have 2 hallways one after the other, right? First into the entrance area and then to the right into the living area? What is the second hallway for, running up to the outer wall? Between the bathroom and the one room.