Public domain photo of Fifty Mountain that was altered with Topaz Restyle (emerald city), then the Exposure X6 plug-in (blue and yellow effect), then Luminar AI (AI sky enhancer effect), then the Exposure X6 plug-in (exposure, luminance, and saturation adjustments as well as darkened skies and central clarity effects), and then AKVIS ArtWork (oil painting effect). Public domain image by the National Park Service. Full-size JPEG image download on Flickr.