I always loved this album cover as a youngster, & I'm pretty certain I attempted to draw a copy of the 'big brother' face on more than one occasion. But what I could never figure out was why the members of the band had playing card emblems on their chests, & why Brian Robertson (the figure on the left) appeared to be a girl!! And yes, I agree, I suspect Jim Fitzpatrick had been reading quite a few Neal Adams comics around this time.
Irregardless is not a word.
I used it so long that Webster's finally added it to the dictionary, with a very spiffy definition---"irregardless 1. see regardless"