There’s not a picture when there should be so I don’t think anybody can help you unless you repost with a picture
Tone is the author's attitude toward the speech. Since we know that Dr. King was the author and presenter of the speech, this was one of inspiration, seriousness, hope, and encouraging. This is not to be confused with mood. Mood is your feelings from the text. So, while the tone may be one of hope, to say it was 'hopeful' would be a mood (if that is indeed what you are feeling when hearing it.)
Answer:
In A Long Way Gone, one motif is the folk tales that Musa tells as the young boys travel from village to village looking for safety. Musa's stories remind the boys of the teachings of their elders and help them connect to their childhood.
