Did you get a handle on how large the statue was?  It was the equivalent of seven stories high and was only nine feet wide.  Interestingly, this is the same ratio of the dimensions of the Washington Monument, which is 555 ft. 5 1/8 in tall and 55 ft. i 1/2 inches at the base.   There is nothing in this passage of Scripture that tells us what the image looked like.  Many think that it was an image of Nebuchadnezzar himself, but that is not supported in Scripture. Chances are it was an obelisk of some sort or an Asherah pole. 

There were several provincial offices listed.  Satraps were governors over major divisions of the empire serving as chief representatives of the king.  Prefects were governors over conquering cities. 

The Jews were denounced.  Remember, they were from the tribes of Benjamin and Judah from the Southern Kingdom of Israel.  The Northern 10 tribes were taken into Assyrian captivity. 

What great faith as testified by Shadrach, Meshach, and Abednego! They knew God could save them from the fiery furnace. They also believed that no matter what happened He was still their God. And the outcome? Not only did He save them from the fire, but their hair was not singed, their robes not scorched, nor was there any smell of fire on them. Isn’t that just like God? To do more than we could imagine?

Eph 3:20
Now to him who is able to do immeasurably more than all we ask or imagine, according to his power that is at work within us,

God does more than we can ask or imagine, according to the Holy Spirit, the power at work.

Who was the fourth man in the furnace? Could that have been the pre-incarnate Son of God?  He is described as one who looked like "a son of the gods".    Could this have been something similar to what was seen at the Mount of Transfiguration?

Nebuchadnezzar flip-flopped back and forth during his reign concerning his allegiance to the God of Daniel.  In this brief passage, he went from condemning the three men and throwing them into a seven-times hotter furnace to ordering that those who say anything against God be cut to pieces and their houses burned into piles of rubble (Hebrew word rubble is slang for feces.)  We have little evidence to support any claim of a true conversion of King Nebuchadnezzar, but he certainly had plenty of chances.