How does Dave Pelzer use imagery in A Child Called It: One Child's Courage to Survive?

Examples of Imagery:

"Without a word, we stood watching the fireball-like sun as it sank behind the tall trees, leaving bright blue and orange streaks in the sky."

"Gripping my arm, Mother held it in the orange-blue flame. My skin seemed to explode from the heat. I could smell the scorched hairs from my burnt arm."

"Under the water I opened my eyes. I could see bubbles escape from my mouth and float to the surface as I tried to shout."

"The sun is making its final descent. The magic is about to begin. The skies are ready to burn with brilliance, as it turns from a soft blue to a bright orange."