Before continuing with the windows, I would like to clarify two points already mentioned:
1. the various projections and recesses between the ground floor and the upper floor mentioned by : I find them visually successful, but they do cause significant additional costs and are a potential weak point if poorly executed. Are you aware of this, do you want it that way, is it therefore fixed (especially since it has already been submitted with the building application)?
2. Post #57 by somehow got overlooked, but is very worth considering: you have four almost identical rooms upstairs - so why put the bathroom and bedroom in the south? It would make more sense to put the bathroom & bedroom in the north and the other two rooms in the south. The bathroom would then also have some natural privacy through the garage, which in turn would allow other windows. Would you consider this?
Regarding the windows: I think your changes have already loosened up the whole thing and visually improved it significantly! Nevertheless, I would be cautious with high (whether 120 or 130 is irrelevant) parapet walls. That is not nice from the inside, also unnecessary for privacy protection, you have no view, and you assign the rooms a possibly unchangeable use/furnishing. I find the 55 cm parapet height a good idea, though! Are there actually views around you that you want to see? If so, that must be taken into account.
One more thing: I find there are an incredibly large number of doors in this design (utility room with three doors, storage room two, the garage annex three, the bathroom two, under the stairs) - you won't need them in your life, and they are impractical... should be tidied up. However, I would make an exterior door to the garage annex (instead of the current window) - always opening the gate when you have to get to the annex is annoying :)