I agree, Caesar was a genius and talented in almost every field. Also, his style in writing was considered by his contemporaries an example of concise, elegant latin (even by Cicero if I remember well).

I remember from my class lessons my Latin professor pointing out the very original grammatical constructions that Caesar used: a serie of sentences describing a situation, with the most important action or subject at the end. For example: "having the Boi revolted, and having the Averni joined them breaking the treaties, Caesar marched North to face them."

P.S.: I just made up the sentence as an example, don't search it in the de bello gallico :)