Just playing with a half darkslide and decided I liked the combination rather than the two separate images. Done one after the other without camera adjustment. Nice of the little cloud to come and play.
It was my last sheet that day. I was testing the half slide to see what the actual image area would be, but rather like the unintended result. With hindsight, it would have been better to have moved back and lifted the camera a bit. But that cloud will never be there again.