Essays / Activity essay on the Common App question; should it be more straightforward? [3]

Hi, I was wondering whether there is a specific style that is more appreciated for the activity essay. I wrote mine more like a literary piece rather than an actual explanation of my activity but now I'm wondering whether it should be more straightforward. I noticed most of the activity responses up on this site tend to follow the latter method.

So again, is it ok if it just presents a descriptive image of my activity (of course, with a couple of sentences of what the activity meant to me)? Or should it just handle facts about achievements and explain what the activity is and such?

Thanks!