This means that your body “as it was at 20” is now somehow internalized in your soul. So if you die your soul will take the internalized body with her. However after death your soul is no longer able to make choices between good and bad. This is precisely what death means.
Only the dust your soul uses to shape your body will be delegated to the scrap heap. Your body will be taken away internalized in your soul.
Your soul deserves “the title of Image” because it is a human soul, that is, a soul like the soul of Jesus Christ. And this is the same as saying that your body is like the body of Jesus Christ, and consequently your body deserves the title of Image as well.
I dare to propose you rather see things in a relational perspective:
By means of your body you have created webs of love involving your family, the families of your children, your colleagues, friends, etc. These webs, which will survive you and continue to grow till the end of times, are actually part of your body. So your body will only be complete at the end of times. All those who have chosen God in their earthly lives with help of Jesus Christ’s grace will experience the completion of their bodies through an immense web of love. This completion is nothing other than “the resurrection of dead at the end of time”, and the web of love uniting the so completed (“resurrected”) bodies will build the glorious body of the Son of God: “for we are members of his body” (Ephesians 5: 30)
So ”the resurrection of dead at the end of time” will be the fulfillment of the words by which God defines the beginning of humankind in Genesis 1: 26: “Let us make mankind in our image, in our likeness”.
I consider the state of the resurrected bodies in heaven magnificently described in the following quotation of C.S. Lewis in The Four Loves:
When we see the face of God we shall know that we have always known it. … All that was true love in them was, even on earth, far more His than ours, and ours only because His. In Heaven there will be no anguish and no duty of turning away from our earthly Beloveds… because we shall find them all in Him. By loving Him more than them we shall love them more than we now do.