Nice work John, like the 3 for your new view of the Keith Rowley design, I've kept the tops thicker too and have found the finials are the hard part of finishing the pieces, I've had it said, as to you should be able to place rings or chains over or from the finial, some make longer columns, just for that reason.
The columns are not that plain, nice sharp details, excellent, the centre one works well, but for the black, which changes the look so much, as with the left, that's ok, I'm still out the the right one.. will keep thinking on it.
David