Did I revise this passage correct?

Heroes come in all shapes and sizes. Women and men, adults and children. However, one hero looked quite different from what you might imagine. Living in Czechoslovakia after World War II and name Antis. This hero was a German shepherd dog.
Heroes come in all sahpes and sizes, women and men, adults and children. However, one hero looked quite different from what you might imagine. This hero was a German shepherd dog, named Antis. He lived in Czechoslovakia after World War II.

I'd put a colon after "sizes" and be sure to check the spelling of "shapes."

Otherwise, you did very well.

Yes, you revised the passage correctly. The changes you made improved the clarity and flow of the sentence. Well done!

Yes, you revised the passage correctly. Your changes improve the clarity and flow of the sentences. You correctly capitalized "German shepherd dog" and added a comma before "named Antis." Additionally, you separated the sentence about Antis living in Czechoslovakia after World War II into a separate sentence, which makes it more coherent. Good job!