yikes, that is a really small picture, not sure if you're going to be able to see it very well. I was also only able to add one pic, couldn't add the master plan, sorry. Again, new at this :(

No closet space under the stairs??? Dang, I guess that means you really need that entry closet to stay an entry closet. :-( I'm working on another idea but need to know the exact measurement of the section of wall that contains the bedroom door in your original drawing. (i.e., from where the 3'6" measurement ends going toward the right until you hit the bedroom wall. In other words, if we drop the right hand bedroom wall down to create a hallway like I did in my sketch, exactly wide is that hallway from left to right. I also need to know how deep your 46" vanities are. Usually vanities are about 20" deep but yours might be different and that could make a difference. Also, if you're thinking of going with a pre-fab shower unit, you should definitely pick out the one you think you want so that the design can incorporate a space for it. It is actually easier to design around the idea of having a custom tiled shower because then an inch or so one way or another doesn't really matter. But when you're trying to make a prefab fit, you HAVE to have enough space for it. So if you haven't picked anything out yet, the design has to leave extra room to ensure that something WILL fit. DON'T actually buy a pre-fab shower tho until AFTER the design is done... just in case we can't figure out how to make your first choice fit. But, pick one out and post the specs. Better yet, pick out a couple of different sized/shaped prefab units that you would be happy with and post the specs for both. Take a look at neo-round and neo-angle showers also. I have a 37" neo-round shower form Maax in one of my bathrooms and really like it. I think I might be able to make a 42" neo angle shower like the one shown below fit in your space AND still find room to give you a walk-in closet. Need to know those measurements tho before I'll know for sure. Here is a link that might be useful: Neo Angle shower

In case Jenn gets notifications on this thread, I have a similar problem. I wanted to use sconces but think there is not enough room so I think we might need to use a bathroom bar. How is the lighting you are receiving from the lighting? Are the shadows impossible? Troubling? Minimal? Thanks...should you see this.

This is one attempt. I am not familiar with the regulations nor the dimensions of europeean appliances/bath fixtures etc. This might not work, I don't know. Maybe the distance between the toilet and the bidet is too far. I placed them that way so you don't see them when you enter the bathroom but it may not be practical. Also I wonder if the shelves you have in your kitchen are inside the pillar. In the floor plan below, I completely remove the shelves: If you don't need the powder room: