ISO 400: In the moonlight on Ling Fell

We climbed Ling Fell by moonlight - no torches needed this time. I was trying to get better shots than last week on my very cheap camera. This week I went for the lightest image I could select on the exposure setting and then tried ISO 400. I don't actually know anything about ISO so some work to be done here but we thought that it might make it better. The result is the view of Cockermouth above. ISO alters the sensitivity of the image to light. I was hoping that more sensitivity might mean I'd pick up more light. I'm not sure it works like that because they say it makes the image more blurry. So I've got an excuse for more experiments.