Nadaaa! No we are not done yet. But let's review all the steps done until now. We obviousely have a version of the image that looks much more alive, kept most the pro's of an HDR treatement but none of the cons. The last image is a would be hdr treatment of the original.
Step 26 - HDR Comparison
Here is an HDR version of the original image. HDR treatment actually did nothing for the colors of this image, only tried to bring a unified luminocity to the whole image with a good mid tone contrast. The clouds are far inferior to our treatment, but it provided us with a little more ground detail, thing that we could use in our image, but nothing some Sharpness and Midtone contrast could not achieve for our image as well. Also, the method used by ACR, Curves and Channel Light Masks, brought the original colors of the image to show, only by treating it's exposure dynamics properly.
Step 27 - Color Enhancing - Hills
It's time to start enhancing the colors of this image. Open a Color Balance Adjustment and set the Midtone and Shadows Greens to +25 and +10 accordingly. Adding Green looks good for this Hill. Select the Color Balance 1 Mask, press ctrl+I (PC) or cmd+I (Mac) to invert the mask, pick the brush tool, select a round brush (size depends on the use, use "]" and "[" to change the size) white color, in a medium opacity (40%) and 0 Hardness and start painting the mountains along with other green details on the ground. Finally apply a Gaussian Filter on the Mask (80 to 100 radius on a 22 mpixel image, less in smaller images) to even the edges out. If this is too Green then set the layer opacity a bit lower, 50% or 75%. I set mine to 56%.
Step 28 - Color Enhancing - Clouds
Because it was a sunset we will add some Red and Orange to the Clouds to give an even more dramatic look to them. Open a second Color Balance tool, set the Shadows to -12R, -8G, +1B, Midtones to +30R, 0G, -17B, and highlights to +24R, 0G, -61B (!!). Intense values are used to present the effect even better. Since none of the methods used is destructive to the image, everything can be undone simply by erasing the adjustment layer. Similarly to the previous step, select the same brush as before and paint over the clouds in the inverted mask. Finally apply a Gaussian Blur to the Mask.
Step 29 - Color Enhancing - Ground
Choosing to bring more life to the ground as well, we open a third Color Balance Adjustment and set the values Midotes R+15 G+5 B-17 and Highlights R+12 G0 B-65. We invert the mask and use the same brush to paint over the ground area, appy Gaussian blur and adjust opacity of the Layer.
Step 30 - Color Review
This image got a significant amount of life in it! It now showcases a great ground and sky combination of colors and warm casts, with the middle area separating them and keeping a good balance between. Actually it is far closer to what I saw in real when I was taking this picture. The sky warm/cold contrast from right to left significantly creates an astonishing picture, a photograph painting. One final step for this image would be some sharpening of the ground details to get a little bit of crispy clarity down there, like in the HDR comparison.