I finally collected and scanned the roll I used for the pinhole experiment a couple of weeks ago (see this post). Below, the best results I obtained (not too bad for a first time in pinhole photography, I think).
The only editing the pictures underwent is a bit of cropping and rotation, to remove some borders and straighten the horizon.
I used a Diana F+ with a tripod, cable release and pinhole setting, aided with the Light Meter app on my phone. The film I used was a Kodak Ektar 100.