That is a very interesting interior design. If I have to make a suggestion, you should remove the 3 tables at front of the entrance. Its in the way and makes it a bit cramp. o.o

2nd Floor looks great! No need to change it. =3

As for the restrooms problem, it should be on the 1st floor, located far right, few feet away from the kitchen's door.

Hope that helps. o.o

*symbols didn't work at all. It made it sloppy. Sorry Wolfypup. .___."

Thanks for the input, I'll sure to make those changes ^^ it's ok I think I get the idea. But do you think the structure is interesting cause I don't want it to be boring

I don't think the structure is boring. It looks great. =D