The ultimate goal of the process of the creation of man is to obtain a 'perfect product' - the character of an individual that does not fall - will not act against the divine principles of justice - when it is subjected to the test. The nature of the first human pair was not like that, which is best demonstrated by the 3rd chapter of the Book of Genesis. About the first man, the Bible says that he was very good - untouched by sinful behavior, in favorable circumstances could function endlessly. It seems that the conditions presented to Adam were analogous to those that God presented to Israel in the Law Covenant, namely the life of an Israelite in the promised land was to be extended until the first sin is committed. And because the first sin always came very quickly, no one in Israel has ever lived beyond the average life expectancy. Similarly, Adam's first sin came very quickly, so he had to leave the Edenic Paradise.
Adam was therefore good enough to 'prolong' his life without end, but he was not good enough to cope with the test. This double element - being very good and being perfect - was expressed during the creation of man. God then speaks to someone who is present at this event: let us make man in our image, after our likeness. Likeness in Hebrew is also a shadow, and therefore an outline of form. In this sense, likeness corresponds to being 'very good' - in an external form man is sinless. However, likeness (like a shadow) does not contain information about the details of what is inside; the psychological mechanism that works inside Adam is not as perfect as his so far sinless behaviour would suggest. But this is not the subject of God's assessment. The assessment says: Adam is very good; he acts fairly and thus he is similar to God. After the creative act, the Bible says that God made Adam after His likeness (not in the image), so He made the first man very good.
The image of God in man corresponds to perfection. When the likeness presents only an outline, the image contains all the details and similarly the human character is to be in every detail in line with God's principles. The intention to create man in God's image is expressed in Eden, but it is not executed in Eden. And it is not executed by God. When God says 'let us make', He apparently indicates that someone else is to have a significant role in it. What is more, when the sixth day of creation ends, we read about God that He 'rested', so it is the companion of God who comes to the foreground in the process during the seventh day. The New Testament teaches that this someone who creates the image of God in man is Jesus Christ. It is in the image of his character that the characters of believers are to be shaped, so that the fullness of God's perfection can be reflected in them. So we are therefore all the time in the seventh day of creation - the day of God's rest, in which the work of creating the image of God in man is continued; in which the perfection of God's character is made in those who believe in His Son.