Your image is pretty small, but to begin:
There is a bathrooms forum, which you might want to peruse or even post in.

Toilet room doors to small rooms (like your master WC) are dangerous if inswing. Should someone have a medical emergency in there, they are trapped because their body can only fall into the space the of the door swing, and you cannot push them out of the way. So, I'd recommend a design in which your WC door is either outswing, or pocket, or no door.

The shared bath--
it appears the closet for the "top" bedroom may be too skinny to be functional since its door is at the end. But, I cannot see dimensions.

Other than that, the pic is too little to comment on further.