Window arrangement in our new building? What do you say?

Hello everyone,

today I need your help again.
When planning our new building (the base slab is already finished) we disagree about the arrangement of the windows on the north side (street side) on the upper floor.
I have uploaded both previous options.
On the left side (when looking at the house from the street) is our master bathroom, in the middle is a hallway, and on the far right is a children's room.
In the first draft, all windows are the same size, which was a bit boring for us.
In the new draft, with the large window in the hallway and the smaller bathroom window, the architect is now protesting and says it is no longer harmonious.
What do you think about it?

Will this be your house or the house of your architect? Of course, as a professional, I also try to convince clients when the design gets out of hand aesthetically, but taste is not something to argue about, and the architect is paid to execute what the client likes (as long as it is also technically feasible). Regarding the visualizations presented here, I do not find it "tragic" at all if a window is floor-to-ceiling. But it’s a matter of taste ... so no arguing!

smaller bathroom window? Where??

The "old" perspective can definitely handle a bit of tension :)
I think with your window planning on the upper floor you are not doing anything wrong and you are not spoiling anything in terms of harmony either.