Swap a flat white sky for something with character: sunset, dramatic clouds, clear blue or a starry night. The foreground is relit to match so the new sky does not look pasted on behind it.
How the ai sky replacer works
Upload a photo with visible sky. Describe the replacement, for example 'golden hour sunset with scattered cloud' or 'clear blue sky with light cumulus'. Say whether the foreground should be warmed or cooled to match. Run the tool and inspect the skyline edge, especially around trees and thin details. If a halo appears, mention it and run the tool again on the same upload.
Tips for the best results
Pick a sky whose light direction agrees with the existing shadows, or ask for the foreground to be relit to match. Say the time of day and cloud type rather than just 'nice sky'. Trees, wires and hair against the sky are the hardest edges, so check them at full size.