The most critical factor in making a descriptive essay of good quality is realizing the fact that the description that shall be given in the page is expected to create visual imagery in the minds of the readers who read it.
What this means is that if it is an orange that you are describing in the page, then the reader should not only be able imagine what an orange looks like, but also imagine the fragrance of the orange when one peels the orange, and how the sprinkles of the orange’s zest fall upon the skin of the person who peels it.
This entails a few basic steps that need to be undertaken before the actual writing process can begin. Just like no civil engineer would just start constructing a building right off the top of the bat without first having proper consultations from the architect and the structural engineer, you could not possibly expect to write anything great without first taking time to realize what the precise path that you will tread is going to be.
After you have realized the rough outlook of your essay, you need to get to the actual writing process. Since you would have already spent time brainstorming and organizing your thoughts, and would have organized your thoughts so as to make meaningful descriptions you will need to get to the writing process. Begin with the body paragraphs first and develop them fully, then reorder as and when necessary.
Write the introduction and conclusion at the last because this will enable you to properly introduce and properly conclude your essay without adding any additional information that you may not have mentioned in the body.
This requires you to not only write efficiently the introduction and conclusion, but also go through a rigorous proofreading process. Not only should you read and reread your essay multiple times at considerable time differences, but also you should have it read by as many people as possible before you finally submit it. This will enable you to catch any errors that may have evaded your initial perusal.