“Then God said, let us make man [אָדָם, Adam] in our image, in our likeness, and let them rule over . . . all the earth” Genesis 1:26.
“Adam” [אָדָם] here, in Genesis 5:2 (“And when they were created, He called them ‘man’ [אָדָם, Adam])” and in other passages, “man” [אָדָם] refers to both the man and the women — “humans.”
Sometimes “man” [אָדָם, Adam] refers just to Adam as the husband of Eve as in Genesis 3:8. The context determines whether “man” refers to “humans”/the first man and woman, or to Adam, the original human.
Both were created in the image of God — not each having part of God’s image and both needed to fully portray God’s image, but each created in God’s image in their own right, separate (and equal) from each other. The Scriptures emphasize their identity, oneness, and equality as God’s image-bearers.
We were created to portray God — creators and cultivators, artists and horticulturists, managers and developers, — charged with the oversight, care, use, and enjoyment (“that’s very good”) of His creation.