How does Charlotte Perkins Gilman use imagery in Three Thanksgivings?

Imagery:

Mrs. Morrison laid this beside the other, folded both, and placed them in their respective envelopes, then in their several well-filled pigeon-holes in her big, old-fashioned desk. She turned and paced slowly up and down the long parlor, a tall woman, commanding of aspect, yet of a winningly attractive manner, erect and light-footed, still imposingly handsome.

He went away, as cheerful and determined as ever; and Mrs. Morrison saw him go with a keen, light in her fine eyes, a more definite line to that steady, pleasant smile.