It would really help you to draw a scale human in all of your ideas first.Then try to move him through the home. You're forgetting that people have dimensions and will need paths to get to one spot from another.

As the previous poster pointed out, without dimensions we are merely guessing at scale. But it does look very tight in some places. This might be fine for you tho, we here in the states want everything sprawling and wide but in your country that may not be a necessity.

Can you verify tho that someone can comfortably get to the master bedroom toilet to use it? Just based on the drawing it looks like its nearly unuseable. Based on the Living Room furniture placement you have there, there doesn't seem to be a clear path into or out of this area without banging shins on endtables. A simple reappropriation of your furniture choices would fix this however.