This photo was taken inside the Munch Museum Oslo. I never intended for it to look like this but I had left my aperture at f/22 so the shutter was too slow (9.5 seconds). Anyway, I rather like the strange effect with ghostly figures that was the result! We also saw 'The Scream', but that was in the Oslo National Gallery rather than the Munch. - strange but true!
This is how I always feel in art galleries! They frequently baffle me and leave me thinking they are a secret world of understanding to which I am not privy. Enjoyed your description of how it happened!