Do you intend to leave the lines inside the drivers compartment or will you route them inside the side pods so they are hidden?
I don't believe on most compression fittings there is a difference in the ferrel as far as a right way and wrong way. I say most. Looks to me as you just didn't tighten it down enough. Use pipe dope on the ferrel before you tighten it down, it helps to lubricate between the ferrel and the nut as you tighten.
They will remain inside just as in the image. I do agree with you it shouldn't have made a difference but there was an obvious "top" which snapped into the nut housing.







