As this was bit unsaturated so increased Exposure, contrast, whites etc. And increased texture & clarity foe more details. Adjusted curves, Colours grading & mixer.

For this Image, adjusted colours in curves & in colour grading & mixer.Added mask for BG adjusted colour grading and did basic adjustments.

Inceased exposure, whites and etc for the lightness, & played with colours after doing basic adjustments.  

As this image looks too dark, increased all the brightening options & increased Textures. Adjusted with Hue, saturations & Luminance and Grading etc. 

Adjusting & playing with Curves, textures, hue & saturation, grading gave this dark & colourless RAW image a realistic colourful processed image.