The Law is not a picture of Christ. Ir prepared a nation for Messiah. The Law was for Israel between Moses and Jesus.
The Law gives many, many pictures of Christ.
First picture presented is relationship to and with God.
Now, I want you to give this some serious thought, Tom, please do not dismiss what I am about to say offhand:
John 15
King James Version (KJV)
15 I am the true vine, and my Father is the husbandman.
2 Every branch in me that beareth not fruit he taketh away: and every branch that beareth fruit, he purgeth it, that it may bring forth more fruit.
3 Now ye are clean through the word which I have spoken unto you.
4 Abide in me, and I in you. As the branch cannot bear fruit of itself, except it abide in the vine; no more can ye, except ye abide in me.
5 I am the vine, ye are the branches: He that abideth in me, and I in him, the same bringeth forth much fruit: for without me ye can do nothing.
Now I will ask you a question: what is the vine which is not true?
I will tell you what I view it as: Israel.
And the thing about Israel is that it is tied to the Covenant of Law. Meaning, we don't separate the two.
That relationship was the means of relationship with God in that day. When Christ states "I am the True Vine," what He is saying is "I am the true source of relationship with God. I am the true source of the provision of God."
Paul uses a tree to present this same concept in Romans 11. The branches that are cut out, the natural branches, are those who, through unbelief, refused to abode in Christ.
So the first picture we see in regards to the Law, which is specific to Israel, is the relationship.
Here is the True Vine spoken of in the Old Testament:
Isaiah 42:6
King James Version (KJV)
6 I the Lord have called thee in righteousness, and will hold thine hand, and will keep thee, and give thee for a covenant of the people, for a light of the Gentiles;
Check the context, in view is the Messiah Himself.
We simply do not have the (Covenant of) Law without Israel, and we do not neglect to notice this is a relationship between God and man. Israel is often spoken of as a chosen nation, but that is not accurate: they are a created nation. And they were created for a specific purpose, to be God's People.
Isaiah 43:1
King James Version (KJV)
43 But now thus saith the Lord that created thee, O Jacob, and he that formed thee, O Israel, Fear not: for I have redeemed thee, I have called thee by thy name; thou art mine.
Beyond that picture of Christ, we see many other "figures," or, shadows, or, parables of Christ in the Law.
For example, the veil of the Tabernacle (which itself is called a figure for the time then) pictures the means of true entrance to God, which is the flesh, or death of Christ. We see Him in the offerings of the Law in the Passover and the Day of Atonement. We see His Priesthood in Levitical Service. We see His Kingship.
And to bring this back to point, this is how I view the Six Days, as a picture, or, as some would say, a "picture prophecy."
God bless.