How does Eilis O'Neal use imagery in The False Princess?

Imagery:

"This kiss trampled Tyr's kiss, threw it to the ground, and danced on its grave. It was like being kissed by sunlight, or joy."

"She was painting a picture in my head, so vividly I could see it. Myself, no longer awkward and unwanted, but strong, striding through the palace in wizard's robes"

"The spell still bound us, three sides of a triangle, holding our souls together."