Original sentence: Mark Martin (born January 21, 1956)is an American cartoonist known for lighthearted humor and satire.Martin's first major work in the 1980s was Gnatrat, a parody of Batman featuring a rat who dresses as a gnat to fight crime
Edited sentence: His first major work in the 1980s was Gnatrat, a parody of Batman featuring a rat who dresses as a gnat to fight crime.Mark Martin is an American cartoonist.Martin's work most likely lighthearted humor and satire, illustrated in an energetic and elaborate style