Thank you for this great project, I have designed my project as best as possible, as you can see in the rendering that I have attached, for the second and third floors I made the bathroom and bed designs the same, apart from the stairs on my first floor move it, because in my opinion it is very irrelevant if we have to go through the kitchen.
There are several details that I have not included, regarding my confusion about the thickness of the first and second floors, I hope you understand
I hope my design suits your wishes, if there is anything you want to ask, I can help, best regards
