"He is generally extremely bright in his studies"
"he has been considered to be a prefect of the school due to his academic achievements."
Well, that's wonderful. I am sure, then, that he will be able to write an extremely bright essay that befits someone of his academic achievements, which is, after all, what he has been asked to do. As near as I can tell, you do not have to submit anything at all -- he does. If he wishes to write a draft of his work and post it here for feedback, that would be a great idea. Wish him luck from all us of here.
Sean, EssayForum.com