Surface structure, the final sentence, reflects the word order dictated through the hierarchy of constituents.
Some texts do not show the Auxiliary as we have done here. This is not an exact science so you should expect to find many variations in these descriptions in the literature.
The final breakdown includes the actual words. This is, at last, the level of the surface structure--what is actually said, or written or signed.
If you like the last tree in the graphic version, get a load of this one.