Complex sentence: Kurtzman submitted some Goodman Beaver strips and was surprised to receive a favorable response from Hefner, who liked the "fresh and eager" character and enjoyed "Goodman Goes Playboy", which featured a boisterous romp in Hefner's mansion.
Split into simpler sentences: Kurtzman submitted some Goodman Beaver strips and was surprised to receive a favorable response from Hefner, who liked the "fresh and eager" character. He especially enjoyed "Goodman Goes Playboy", which featured a boisterous romp in Hefner's mansion.