I somehow missed your original post! Love the images, particularly the near-monochromatic ones (green). I can't tell them apart as far as which lens was used: old or newer. Guess that means "older" is just as good as "newer," right!

I prefer the second set too, I'm getting better with the camera.
The new lens was used for the two green shots, and for the first, second, and last shots in the first series. As you say, sometimes older lenses can perform impressively well.