More traditional rendition of my assumed arms

Or, a diamondback rattlesnake ondoyant sable marked fanged and rattled vert vorant the the sun vert

mantling or and sable

on a torse the same as the mantling a bull's skull gules a diamondback rattlesnake coiled and enwrapped about the skull sable marked fanged and rattled vert

note 1:

the chief of the standard has been altered to the arms of the United States, in the place of honor traditionally taken by the cross of Saint George in England or Saint Andrew in Scotland (et al.) I had previously placed the majority of the achievement of the United States there, under the impression the it's role as badge of the United States on military buttons, etc. was analogous to the cross of St. George's status of badge for England. I am not entirely convinced it is not, but this is simpler.

note 2:

while the fly of the standard is now similar to common modern practice, when I do make a flag for my house, it will revert to the original fly. Historical example vary widely, and mine fit just fine with those standards which date from the period in which this sort of flag was used.

Done