would like to know which of the two floor plans you think is better. one floor plan has a straight staircase (small open gallery) and the other has a half-turn staircase,
First of all, "thanks" for the computer crash when viewing the six-and-a-half square meter (!) drawings :-( This initially shows that you are using an unsuitable drawing program. Keep in mind that not only are the gigapixel images difficult for participants to view, but later on, in a 1:1 scale, the masons will only be working with one point three dpi resolution – this "precision" is therefore complete nonsense. I don't want to "criticize" your floor plans in detail yet, because the most significant weak point has already been noted by my predecessor: these are each ground floors, which is the least suitable approach. Stair shapes, by the way, do not only have pros and cons compared to each other, but in any case have a centrally defining influence on the overall floor plan. A straight, single-flight staircase is somewhat the "stick up the a**" of a floor plan. With only a few more ingredients, you can make a floor plan completely unworkable if you put the cart before the horse like that. After you have dealt with the property and can approach the floor plans, it is best to start not with any drawing at all, but with a table. In this, you enter the rooms and then "qualify" them with their approximate floor sizes. Then you assign them to the floors. The "weight" of the areas in the lists "EG" and "OG" should be approximately in the ratio 50:50 ("city villa") or 65:35 ("one-and-a-half storey") to each other. Once you have achieved this balancing, you start with the upper floor, the layout of which you first develop. The ground floor then follows this layout. This rule assumes an entrance on the ground floor; for sloped lots, you have to vary the approach. The strictness of this derivation also depends on the load-bearing walls. If "your" design is largely based on a template, it is helpful in the discussion to name the original model (no link!), and describe the variations (e.g. family with three children or two home offices).