UPDATE! On a good suggestion byAnonymous, I've included a version with the big ghost-like head of Professor Stein as well!
I remember first seeing Firestorm as a kid, as they featured him as one of the figures in the iconic Super Powers action figure line. I didn't know much about him a the time, but I loved his outrageously bright red and yellow colors, as well as the fire coming out of his head (and punching action of course). How cool is that? Since then he's continued to appear in DC comic books and even in the CW's tv DC universe. You've come a long way Ronnie!