architecturally, the only things I see that might need attention are the stair railing and some missing flashings. You need a sloping hand rail either inside the squared off railing, or the top rail of the two protruding rails would need to have a sloped top. The entry roof to the horizontal boarding would require a stepped metal flashing. So in reality you'd see a gap between the course of roofing and the horizontal siding. Also, there should be a 2" gap between the siding and the hard surface paving and a 6" gap between the siding and the soft surfaces. But these are real nit-picks.
Last item I'm seeing is the glazing. The windows appear a little too flush with the exterior of the home. In reality I think the glazing might need to be set in about 2". The reality of the construction is the horizontal siding is a veneer over the framing. The glazing would set back in behind the face of the framing and the lap siding would protrude at least 1/2" beyond the framing. Same with the garage doors.
For what it's worth the I find the ArchiCAD libraries to be semi-American. They still seem to have a lot of Euro influence to them. Neil McCann's Real Windows/Doors and Cabinets used to be really good. I'm not sure if he's still developing them?
I know you said you build the model from a set of plans. The plans appear to be venacular to mid-western style of home. The mass of the second floor supported on 4 posts might be problematic structurally in earthquake regions.
I am an architect and have been designing and involved with residential construction in the west and southwestern US for 30+ years. So hopefully this will give you the feed back you were looking for. Sorry I didn't understand your original post.