@Naveed bro Ofcourse that is right. But as it is mentioned in previous comments that you are an English teacher and most importantly you wrote such a detailed stuff about Essay (which ofcourse is much appreciated), so keeping those things in mind I want to know traits of an ideal essay from expert like you.
Verily these things are very subjective, but still there would be an ideal position . too less or too many quotes and words would never be recommended so if there is any ideal numbers regarding these things please mention .
Thanks again and sorry I couldn't quote you in this comment

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Somewhere Beyond Right and Wrong, There is a Garden. I'll meet you there :Rumi