There is much theological error here....
First... You misunderstand was is conveyed by "you shall surely die." The Hebrew is literally "Dying you shall die" and that phrase used often in the Old Testament to express a pre-determined judicial punishment. In courts today, a death sentences is given, it is not carried out immediately. In the same way, the sentence for disobedience was known to Adam and that sentence was given when he ate the fruit, but it was not carried out immediately.
Second... "Image" means "representative." To bear God's image is to be His representative (like a governore to a King).
HERE is a
really good article on what "image" means, though you would need some serious Hebrew skills to wade through it.
Third... The statement "by man his blood shall be shed" is a law given by God to man (for the purpose of governance), it is not a law given for God to follow. Therefore, God does not "break" this law.
Fourth... "Image" is not something that goes away because of the fall. The image is marred, yes, but not absent. We know this because of Genesis 9, where the reason for capital punishment is that mankind--though now sinful--is still in the image of God. Also, stealing, murder, etc. is wrong not just because God says so, but because to steal from a fellow human is to steal from a representative of God--and that is tantamount to stealing from God Himself.
What you've written above is just... bizarre. And totally ignorant of the biblical text.
Seth being in Adam's image simply means that Seth is a descendant of Adam (ie. not Adam) who is a creation of God. It also shows that the Image and Likeness of God that humans were created to be (Image) and with (likeness) is still there, though marred by Adam's sin. It is a more a statement of the fallen order we now live in. The refrain in Genesis 5 that is spoken of everyone (except Enoch) is "and he died." So, we understand that all of us are fallen. That's all.
Finally... Your statement is logically incoherent. If Adam had a "permanent, incorruptible body" then he could not have died, which he did. So, it's likely that much of your thinking here is based on a wrong starting point.
The Archangel