Here I do not change any of the existing wall. I focus more on the living-dining-kitchen area.
In the main living area, I make it as open and bright as possible by minimizing room divider. However, between the dining table and access corridor, I put a credenza for shoe storage. This is optional, you can ignore that part if you don't need it.
The color I use are combination mainly monochromatic and wood, with mixture of white, grey and soft concrete for the walls.
Hope you like the design.