Complex sentence: McLeod began his career working in the production department of Marvel Comics in 1973 on a recommendation from Neal Adams, but soon began penciling and inking for Marvel's "Crazy" magazine, doing several movie satires and the "Teen Hulk" strip.
Split into simpler sentences: McLeod began his career working in the production department of Marvel Comics in 1973 on a recommendation from Neal Adams. He began penciling and inking for Marvel's "Crazy Magazine", doing several movie satires and the "Teen Hulk" strip.