The following image was adjusted using Lightroom masking tools to isolate various areas of the image separately and then make adjustments specific to those layers.
Original RAW File
Isolating the sky using sky masking and then adjusting
Separating the sea and mountains by creating a mask using a colour selection, then Tone and Colour adjustments.
The previous mask is duplicated, then inverted and the sky is removed from the mask. Adjustments to Tone, Colour, Detail and Effects
Isolation of the rocks and bare trees using a colour mask selection. Adjustments were made to Tone, Colour, Effects and Detail.
A brushed layer was added to the show-capped volcano, and the Detail was adjusted. Then, two Liner lays were added diagonally to the upper portion of the sky. Adjustments were made to Tone.