Measure the furniture in the common room. The sofa, which looks so spacious, is actually quite small. The bedroom has a rather tight wall-to-bed distance.
I wonder why you extend the hallway all the way to the back on the ground floor; you could also place the wall with the door directly after the staircase. See attachment. Perhaps no door is needed between the pantry and the utility room? That would make the passage wider. Overall, there would be more space because the hallway takes up less room. Possibly remove the window in the pantry = more space for furniture and no slanted view anymore.
In the upper floor, I also drew you a version where the bed is positioned much better (more space on the right and left, headboard not under the window, view of the garden). Also, there would be more space in the dressing room to place wardrobes. You don’t need to shorten the lower wardrobe just because the window is there for symmetry reasons.
With the drawn-in living room furniture, it looks as if there is space for a large sofa and a big table. In the living room corner, it is only 2.74m to the window, so such a large corner sofa does not fit there, and the dining table with 6 chairs looks as if there is still a lot of space to the kitchen and living area.
Curly is right, I don't understand why you want to look at the wall from the sofa instead of out of the big window. I would rotate the whole thing and make the door to the living room a bit narrower. Then you have a lot of space for the sofa. It also creates a better separation because the dining table and sofa are not in a straight line but staggered.