Descriptive or not ???

Still with the same topic, it was the type of paragraph. On the previous week we had studied about Narrative, we had understood well what the Narrative is and we can analyze a narrative text, So, on the last Friday we discussed about the other type of paragraph, it was Descriptive paragraph. When I studied  descriptive in junior high school, I thought descriptive is the easier type of paragraph that I learned at that time, because I was so easy to make a descriptive paragraph. I still remember, when I made a descriptive text about dolphin and than I presented it in front of my class in junior high school. It was so easy to do it. But last Friday, I felt that descriptive paragraph was so difficult for the first time in my life. Why??? Because when I read descriptive text of my friends, for the first time I thought it was descriptive but after I read once more and I analyze it, I realized that it was not descriptive some of my friends said that it was illustration and the other said that it was definition, but in my mind.. it was an illustration paragraph because when we read this paragraph we could not imagine the subject that discussed in that paragraph. Now I can conclude that  it’s easier for me to make a descriptive text than analyze a paragraph to know it’s descriptive paragraph or not because when I make, I will understand the main idea ( topic sentence ) of the paragraph, but when I analyze the text of the native speaker, usually I don’t understand what is the topic sentence of that paragraph  because the topic sentence is not always available in the beginning sentence of paragraph, we can make it by using our words based on the hole text in that paragraph.