Point of no return

I reduced part of the slide's colors by selecting important areas of

the image and then filled them with shades of blue in order to focus

and bring out the person dressed in white and red, using the

architectural surroundings as guidelines, in order to preserve the

overall graphical look of the composition. In similar work I

used "Glowing Edges" in a new layer and then blended the layers using

the "exclusion" filter to bring back the colors while maintaining the

glowing edges.