Well, the 1st image uses jpeg quality 79 an subsampling 2x2, the second one 95% and subsampling off. But I think there were also different processing parameters in use, or is this wrong?
I use to use 96% and subsampling off for exports, which sure does not look better than 95%. 100% would only unnecessarily bloat the output size IMHO.
Additionally you might consider to apply a bit more sharpening to the exports. In the EXIF I see you are using RT 5.6. Better try with the latest dev build of 5.8, where the great “Capture Sharpening” tool is implemented.
Proposal: upload a RAW to PlayRaw section and see what others do with it. I learned a lot there!
There is more going on than a different export parameters. The colors of the first two images are quite different. That’s not due to the export parameters. Please, take exactly the same raw edit for export and tell as where you see problems.