The following picture also shows the full presidential equivalence (while showing how the EU is not a replica of the US):
The three men look more "governmental" here. Also, the flags show a symmetry that supports to motif of equivalence.
Image source: AFP. 2013.
Here is a very symbolic, "abstract art," way of depicting the equivalence:
Image source: Atlantic Council. 2012
Slightly less symbolic, showing that the equivalence is symbolically represented somewhere in practice, what does this picture imply regarding the flags of Germany, Britain, or France, or for that matter, California, New York, and Texas?
EU and US Flags in front of an E.U. building in Brussels
Image source: AFP/Getty Images. 2012.
Out of all of the pictures above, which one (or two) do you think best depicts the motif of equivalence?