Image 1: Both buildings are at a slight angle. The white building takes up a little more of the composition, though both buildings look around the same size. This is the most pleasing composition to the eye.
Image 2: Here the white building is larger and the church appears in the distance. It looks like the church is a smaller detail in the composition.
Image 3: Both buildings are face on, and it is far less appealing. It makes the composition look flat and uninteresting.
Extreme close-up of eyes
As described in the Exercise this has an unresolved feel to it, it is quite un-nerving!