Dan - Great point and I agree with your statement. I would find it difficult to look at the work of "others" and try to replicate. I have no idea of the light, time, situation, background of the photo. For these professional, frankly I would need them to stand next to me, take the same photo and see the results they produce. I hope that makes sense.
I have done a fair amount of training in basic editing in Lightroom specifically
Lightroom for Everyone (Online Course) by Rob Sylvan
KelbyOne Lightroom Training Courses
KelbyOne Photoshop Training Courses
Certainly there are more options, but I really feel comfortable in LR in making basic adjustments and optimizing my work.
The courses above are really geared toward the "nuts and bolts" of the program. I struggle with the creative side of this...and I agree that using programs like NIK or On1 may not be the solution to this problem.
Ultimately as i stated above, I really would like to keep things between LR and PS, jumping into PS is great but it is the shear volume of options that lie in front of me that make it difficult for me to find a path.
For the photos above that I posted, I guess my struggle is really the sky and lack of details in the clouds. It does not appear that the highlights are blown out, so I am hoping to recover some of those details and add some depth and feeling to the photos.
Grant - again thanks for the feedback. Having given NIK a trial for the last couple of days, it seems to me that it can help me figure out where I could go in PS. One or two clicks and I see an image that maybe drastically different than before - appealing or not that is still up in the area. For example the image below really changes in my mind with using two filters in NIK - Detail Extractor and Contrast
and compare it to the original image.