How should be the essay architecture

Either structure is perfectly acceptable. Generally it is most interesting to read an essay that is a story (as long as it answers the question and highlights your strengths and experiences!). Just make sure that your writing is clear and concise - stories are nice, but, don't make a story so detailed or lengthy that you "waste words" and are unable to convey your message.

And, most importantly, make sure you answer the question that is being asked! Many applicants are so concerned with highlighting their own strengths that they don't effectively answer the question.

Good luck!

Hi Jessica,

Thanks for the reply.
Jessica, for essays which ask you "Why should we admit you?" how should be the tone of essay.how should i start it and how should i end it?

A school should admit you because you would be a great addition to the class - because you will bring a unique perspective and a unique set of experiences which will enrich your classmates both in the classroom and out!!