Ma Pingchuan refers to the land and describes things, and Liu Xiang is a person, which is not good either.

Great contribution reflects meritorious service. There is no theory of meritorious service in the context of this sentence, which is not good either.

Dragon-horse spirit describes a person's temperament and mental state, which is more in line with the context and can be chosen.

Take the lead, you are already in the leading position, this sentence can't be reflected, and neither can this one.

It's not an idiom, it comes from a book of hexagrams, which describes the sky and fortune. If this is here,

It's a bit far-fetched to move literally,

Could it be a wild horse? Although the deep meaning is to describe calligraphy attainments, the literal meaning is ok.

Don't be so lazy next time, children. Read more books and search by yourself. Otherwise, you will become a little fool.