As an object for the series of 4 shots I have picked up an advertising tower next to the nearest supermarket. It was actually an accidental choice. I was taking pictures of the office building nearby. But when I looked at the pictures on the computer screen, I decided that the tower looks more attractive and came back to it later to finalize the exercise.
Here is the first shot. As it was just before sundown and I did not have a tripod with me, I was taking pictures with a largest aperture of 3.5 and shutter speed 1/500, and focal length for this shot was smallest possible with this lens - 18mm.
For the second shot I tried to fit the subject as much into the frame as possible, as according to the task.
To do this I had to zoom focal lens to 26mm, the maximum possible aperture was 4 and shutter speed slowed accordingly to 1/400s.
From this exercise I learned, that it is always worth taking several shots of an object to figure out, whether object itself or some detail of an object represents the most interest. Or maybe it is subject together with surrounding, what makes the shot interesting.