Poetry: "Tattoo" by Gregg Shapiro

his bone-crushing hugs

Which poetic technique does Shapiro use in this line?

the nervous blue flash in his eyes

Which poetic technique does Shapiro use in this line?

I buried my father in my heart.
Now he grows in me, my strange son,
my little root who won’t drink milk,
little pale foot sunk in unheard-of night,
little clock spring newly wet
in the fire, little grape, parent to the future
wine, a son the fruit of his own son,
little father I ransom with my life.

Source: Lee, Li-Young. “Little Father.” Book of My Nights. Rochester: BOA Editions, Ltd., 2001. Poetry Foundation. Web. 25 July 2011.

Which structure is used in this excerpt from the poem “Little Father”?

My father won’t talk about the numbers
3-7-8-2-5 between the wrist and elbow
blue as blood as his left forearm

Which technique is used in these excerpted lines?