Photography Experiment

I just got my film scanned, I bought a camera last July from Cambridge UK; it is a lovely Olympus PEN-EE 1961-make. It has a fixed lens and works without a battery depending on lenses surround the main lens -as a light meter- and it is a half frame camera [takes 35mm films but exposes on 24mm area]. I tried ILFORD with 400 ISO as a first test and took F4 as a constant aperature to test the light sensors. here appears a photo showing how the photos are exposed to the film, the photos here showing it is 25, while it is actually the 55th photo [it affords 74 photos]. follows an example of some of the photos' quality.