The original image was very flat and underexposed. Bev (RoyalDevon)was probably right when she said that I overdid the contrast and the greens were not natural (good critique feedback; should be more of it). However, there was no deliberate attempt to directly change colour saturation other than what occurred through contrast and clarity adjustment. To me the blue on the posted image looked exactly like I saw it (in my mind's eye). While the greens and the contrast in the posted image were overcooked in retrospect, in the unprocessed image they were also not how I 'saw, them.
The following is a similar image but with 'better' exposure to try and show better the colours and light as seen by the camera's inbuilt 'raw' processor. This image was downsized directly from the raw file to jpeg with no post-processing (but the downsized jpeg was sharpened). The image is rather flat, uninteresting and not representative of my memory of the light at that time. Raw images are typically flatter than in-camera processed jpeg images.