Identifying Visual Imagery in Poetry

Consider the following excerpt from a poem:

The frost creeps silently upon the glass,

Its fingers tracing patterns cold and clear,

While whispers of the winter wind, alas,

Sing songs of solitude that only I can hear.

In this excerpt, the poet uses imagery to evoke a sense of isolation and coldness. Which of the following options best describes the type of imagery predominantly used in this passage?