13:30, Summer, sunny. City square with well-lit historic buildings and lush trees about 30m away from the camera.
Sun is unclipped, so in Cycles, you don't need any light source, other than this HDRI for very realistic shadows.
Camera background photos and color-graded JPG panorama: https://photos.app.goo.gl/FWKuAWLz8cUGUPrJ6
Methodology: 7 expositions with 2EV spacing + 10 expositions of the only sun with ND4096 (12 stop) filter.