😆 I get that
We're his image in that our spirit is of his.
Nothing to do with our bodies or cognitive abilities. (Anything more specific than that and I'd be speculating. There are things no one has seen. His "Spirit" could be "his intention" and/or could be some actual quality beyond current grasp. Either way 🤷 God is "Spirit" and we do not know about that aspect of existence.)

Our being in his image is not "human bodies were made in the same shape as God" nor "humans were made with the ability to reason." It's that the line of Adam (scripture starts listing nations, and they share an ethnicity), the one to whom God breathed his Spirit, have inherited a spirit of God.

That's what Christ is talking about when he says one must be born of above (not "born again", which is not in any Greek manuscript).
One must be born of the water (meaning descended from Adam by the flesh) and of the Spirit (meaning an inheritor according to the covenants, the Spirit, God's Word, given to that line; and--who knows?--possibly meaning having some quality (an actual spirit we don't have the ability to see). What is flesh is flesh, what is Spirit is Spirit (meaning that being a descendant of the line is not enough ("what is water is water")--one must be be a continuation ("what is Spirit is Spirit")).

A river is a line of water. Another river crossing and feeding into the first river downstream forms something that is no longer that first river. Being of the first river is one thing (the third river is of the first), but being of the first river alone--which is the same as being the first river--is another thing.
This is why Christ tells the Pharisees they are not his sheep. They perhaps were descendants of Abraham, but they were definitely of the Edomites (who in turn were of Adam, but only in part). They were born of the water, but not the Spirit. They were not "born above." They were not made in God's image.

When he raises us, it will be by the Spirit. (And we will be clothed in bodies, not these. Who knows what?)

You've no doubt heard we are "in Christ." This is what that means:
(The following sounds schizophrenic if one doesn't follow the procession of fathers and sons in Genesis and doesn't register the verses about "Noah, the eighth preacher of righteousness" and "Enoch, seventh from Adam" in the NT and doesn't know "Melchizedek" is just a transliteration of "Righteous King".)
That God came in the flesh put God in the procession of "the righteous king" (the order of Melchizedek), that procession from father to eldest son upon the father's death, starting with Adam. Since God/Christ is of Adam according to the flesh but Adam's father by the spirit--and living!--he is now forever the priest-king, the head of Adam's descendants according to God, the one by whom we are to be found righteous or not. Before Christ, we were in Adam. Now we are in Christ. Paul writes about this.