You already write that the draft comes from your own pen, you can tell in every corner and cranny. Orienting the terrace towards the street is one of the biggest fails in my opinion. I would also always place the front door as close as possible to the driveway/street so that I don't have to walk 15m to the front door. Then I would – since the plot allows it – use the 11m in east/west orientation so that more "south sunlight" comes into the house, which is especially a blessing on sunny winter days. For that, you just need sun protection in the summer. The guest bathroom can be smaller – also with a shower. We easily managed that with 6.5 sqm. I also find the kitchen and dining area somehow impractically designed. Draw the furniture to scale and the sanitary fittings, then many things will become clearer and other solutions here and there will probably be better.