How might the language and style of these two pieces differ?
Be unlike or not same or dissimilar. Sinonym as different. Or vary, be different, be unlike, be distinguishable.
If two or more things differ, they are unlike each other in some way. “The two writers differ greatly in their perceptions of the world”.
Each writer’s style differs from that of another. “Your list of favorite movies might differ from your sister’s especially if you like romantic comedies”.