Who took the picture of neil Armstrong saluting the American flag on the moon?
The picture I think you are referring to is of Buzz Aldrin. Neil Armstrong took the photo and also most of the ones taken on the Apollo 11 moon landing. He did not directly appear in any still photographs while on the surface.
How can you make word art colors looks like American flag when they had declaration of independen ce?
This is an internet myth, and there is NO truth to it. There are many photos and videos online of the president facing the flag and saluting it, as any American citizen does. Sadly, some of his political enemies have spread untrue stories about how he supposedly doesn't respect the flag, but these claims are false.
One American ritual is held at the beginning of a sporting event, when everyone stands, placing the right hand over the heart (or saluting, if in uniform) while the American flag is raised on a flag pole. A soloist, or everyone present, sings the National Anthem. The ritual may or may not conclude with applause.