How does Ishmael Beah use imagery in A Long Way Gone: Memoirs of a Boy Soldier?

Imagery:

'Blood was running down her dress and dripping behind her, making a trail. Her child had been shot dead as she ran for her life. . . It was a girl, and her eyes were still open, with an interrupted innocent smile on her face. The bullets could be seen sticking out just a little bit in the baby's body and she was swelling. The mother clung to her child and rocked her. She was in too much pain and shock to shed tears.'

"One side of the sky was completely blue and the other was filled with stagnant clouds. The quiet breeze caused a branch to snap in he forest. The echo sounded like a cry, a wailing."