Susan
For this particular edit, I used Nik's Colour Efex Pro, which is a plug-in to Elements 15.
I don't know how you'd do it in Lightroom (have never used it), but I do not know you'd be able to do exactly the same. I hope someone who does know lightroom will come in and tell us exactly how you can apply LCE with it. There could be a tool/slider called Local Contrast Enhancement or Microcontrast.
Sorry not to be more helpful.
I think the most important thing to remember here is that, as evidenced by the interest and the comments your image is provoking, you have started out with a wonderful image. Don't forget that. What we're all talking about is artistic interpretation ... and take 5 photographers/artists and you'll get 10 different interpretations!