Which revision would make this sentence more precise?

The author's use of foreign words makes this piece challenging. The author's work of literature is full of many confusing pieces. This literary work has many challenges and pitfalls. The literary work consists of many things that are difficultthis piece of literature are hard to understand.

I think "The author's work of literature is full of many confusing pieces." and " This literary work has many challenges and pitfalls." are more precise while professional.

However I have a suggestion: change " The author's work of literature is full of many confusing pieces." to " The author's work of literature consists many confusing pieces."