I am still of the belief that these photographs may well be genuine. Just as many UFO and alien photos are fakes, many real photographs are downplayed as being hoaxes. Intelligence agencies employ specific personell to present real as fake, and fake as real, and to further muddy the waters, they do not do this all the time. All part of protecting the worlds biggest secret.
"The following alien photos were distributed around the internet after release in 1995 from China. The Chinese translation stated: "Based upon a source from the Japanese UFO Institute, the picture or photograph shows the 1970 alien incident." The photos of the alien were believed to be taken or the alien body found in Gongzui on Dadu River (southwest of Leshan, China)." OR it's the prop found in the 'International UFO Museum Research Center in Roswell', New Mexico.