Paragliding
Paragliders flying in a line across a turquoise sky, trailing white smoke, their wings red, green, orange and yellow. One of the inks is white, which is what puts the smoke back on grey stock.
6 inks on grey stock, screened at 165 lpi, from the photograph beside it. Nothing is retouched: this is the preset that printed it. Copy it, open the studio, drop in your own photo, and paste.