Thank you for this great project, I will explain in detail the proposal that I submitted, attached plans, renderings, 3D files and other important files to make it easier for you to understand the design that I proposed.
1. Living room & kitchen
In this area there is a sofa with L-shaped storage, this is suitable for an area that is not too large as a way to save space, there is a television and a stove, apart from that in the kitchen area there is a kitchen with an island, and new windows, I kept the niche with grilles shelf grid because I think it's quite relevant,
2. Lobby
In the lobby area there is a small cupboard for storing brooms and other cleaning tools. A little further forward we can see the piano and decorative table.
3. Master Bedroom
There is a large bed, equipped with a projector and a table with drawers on the side. The rooms use glass doors so that light can easily enter the room or lobby area with curtains as a privacy option.
4. Bed 2
As we can see, bed 2 has a bed with a computer desk next to it, with the dominant colors being black and white, according to the colors that teenagers generally like.
5. Bathroom
The bathroom is equipped with a toilet and bidet, as well as a wash basin and shower adjacent to the bathtub.
Thank you for your attention, I hope the design I proposed is what you want.
Greetings