How does the author create an aesthetic impact in the excerpt?

How does the author create an aesthetic impact in the excerpt?

Read the excerpt from H. G. Wells’s The War of the Worlds. But, looking, I presently saw something stirring within the shadow: greyish billowy movements, one above another, and then two luminous disks—like eyes. Then something resembling a little grey snake, about the thickness of a walking stick, coiled up out of the writhing middle, and wriggled in the air towards me—and then another.

A. through realistic dialogue
B. through a comforting tone
C. through scientific explanation
D. through colorful description