Actually the sun and the (full) moon are the same size preceived from the earth and almost the same light quality. The only difference is the luminance. And of course the disability of the human eye to see color in lower luminance. So my prefered condition would be to shoot at direct sunlight without any fill. The trick is to avoid white clipping. Also using heavy ND filtering in stead of cranking up the aperture leads to a much shallow depth of field much more analogous to a night shot. As for the color correction, I would pull down the greens a lot more as well (almost to a blueish monochromatic). The sky I agree.