From the pencil of Martin Asbury – this sequence on the balcony of Lex Luthor’s Penthouse made it more or less completely intact in the finished picture save for a Nuclearman gimmick or two.
Notice how Nuclearman himself is rendered as a featureless Golem as intended in the script back when Christopher Reeve was to portray both characters. Nuclearman was cloned from Superman’s DNA after all…