Hi amy,
This is a fantastic poem. The tone is formal. It suits the poem and subject matter very well. The poem is about the four personality types and the characteristics of each. We don't always think about where the personalities of the people we know or encounter fall in the spectrum of behavior. It was interesting to find out. I loved this poem and read to the last word. The free verse works well in this poem, and you have handled it very well. There is a wonderful rhythm here. The poem flows extremely well. It is a pleasure to read. You have used punctuation and grammar consistently in this poem. There is nothing to distract the reader from their reading pleasure. Great job.