This is IC 5068, a faint emission nebula (comprised of hydrogen gas clouds), located in the neighborhood of the North American and Pelican nebulae. Specifically, IC 5068 is situated very close to the massive and bright star, known as Deneb.
The nebula is mostly known for the streaks of dark clouds that separate the colorful hydrogen regions, which also cordon the nebula off from its better-known neighbors. (All are located 1,600 light-years away in the constellation of Cygnus.)
See more of the photographer’s work here.