What I discovered while experimenting is that its important to get the camera back vertical to help eliminate parallax distortion.
I have a panning plate and nodal point slider to get the nodal point over the center of the panning center. The result is four frames with the shift centered and 4 frames with the shift elevated to include the sky. Used 12.5 magnification to focus on the door frame. F8, 100 ISO, manual shutter 1/100. The exposure was to ensure highlight detail. The histogram shows no shadow or highlight clipping.
The brick driveway is problematic for this kind of stitched pano since the relationship between the camera sensor and the lines changes dramatically. On the right side its quite apparent, on the left not so much. There is also a minor alignment problem with the shrub on the right at the top of the stitch in the bricks that is easily corrected. Since the main interest was to see how much sky and foreground was possible this was successful. In a shooting situation for a client, it will be important to anticipate where stitching problem might occur.
The resulting file is 12385x11708 pixels. That means a 41x39 inch print at 300 pixels per inch without upresing. And as you can see if you choose to download the full res JPG quite sharp throughout considering distance to camera and depth of focus.
HERE is the full resolution JPG for download to review. It should download automatically when you click on the link.