Observation is the key to writing a good description.
Select only the details that support the dominant impression (your thesis statement).
The paragraphs in a descriptive writing can be structured spatially or chronologically (time order) or from general to specific.
Do not use vague words or generalities (such as good, nice, bad, or beautiful). Be specific and use sensory, descriptive words (adjectives)
The conclusion may also use descriptive words; however, make certain the conclusion is logical and relevant.