Both styles were far different from the Paxson flag.
Paxon's eagle is almost eniterely golden and wings are held close.
Both styles of regulation standard have wings more naturally colored in brown and other shades and the wings are wide spread from the body.
There is no shield on the breast of Paxson's eagles, but the shield in red, white, and blue, was an essential element of the Arms of the United States and was present on the regulation flags.
There is no scroll across the bottom of Paxson's flag as there is on the regulation flags.
An element of the Arms not included on the Regular Army regulation regimental standards of the 1860s and 1870 was "a glory breaking through a cloud." This element was included on the later regulation standards, but not Paxson's. This element by the way appears on the redesigned Arms of the United States that can be found on the back of a dollar bill. It is within the circle that appears above the eagle's head.
There are stars above the head of Paxson's eagle, but the stars above the eagle's head of the regulation flags are enclosed by the clouds and glory.
I'm not up on heraldic terms, but I assume 'a glory" is sun rays.