I would simplify some things. Every advance and every setback costs. For example, the WC on the ground floor looks well solved at first glance. But actually, the thermal envelope is expanded for these 3 sqm. Insulation on floor, ceiling, walls. I would remove the door between the garage and the house. Right next to it is the proper entrance. The garage will be hellishly narrow for 2 vehicles anyway. I'm not even sure if the storage will be used for more than winter tires and snow chains.
Kitchen, living, dining, terrace sometimes seem cramped. Without dimensions, that can be misleading. The wardrobe is no longer a wall closet. The drawn-in closet next to the front door seems cramped.
Sleeping floor
I would try furnishing the bedroom.
Bathroom too. Shower narrow.
Where to put bathtub, washbasin, WC.
Garden floor beautiful south room unused. A pity for the whole floor without real use.