Pretty good MJB, only 2 things I can pick on are your fonts, they really take away from the rest of the sig, they just don't blend in every well in my opinion. Too big and blotchy.
Your boarders look off as well, once again they just don't blend in very well and take away from the render and backgrounds. For EX: on the R6 one, I'd probably shrink the stroke and maybe 50% fill.
But other than those small things, looks great.
This Time ... Break It!
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