Ezekiel goes to the old standby of using the harlot as a symbol for Israel. He seems to go into greater detail than the other prophets and calls out "her" indiscretions.
God gives Ezekiel a "riddle"/parable in chapter 17. Evidently God had to keep simple as Ezekiel had the inteelegance of a third grader.
He then critiques a proverb in chapter 18. I think it's just sour grapes.