How does John Banville use imagery in The Book of Evidence?

Examples of Imagery:

"She put her hand up to her head just as I was swinging at her again, and when the blow landed on her temple her fingers were in the way, and I heard one of them crack, and I winced, and almost apologized." Part 1, Section 7, pg. 114

"What a motley little band of manikins I conjured up to join me in these melancholy frottings." Part 2, Section 5, pg. 203