The first is no compressa, I have a similar plant which is named: wagnerniana
The second: I don't know, I have exactly the same plant with a label that isn't correct: winterae. I think this is more a marksiana form, but I could be mistaken.
The third: martinezii, I don't think so. Martinezii is very related to supertexta. What it is....?
The fourth: must be wagneriana var. tortulispina, is very related with the one on your first picture