Concept: Overall color enhancement of the image is relatively easy as compared to specific part because you don't need to select the precise part of the image. Adobe photoshop provides the basic tools like brightness and contrast and many advanced tools and techniques that can be used in combinations. You must have the clear idea about what type and what degree of enhancement you need for your photograph.
1. Open Photoshop. Open the image to
work with color enhancement.

2. Make a duplicate of the background layer and keep
the duplicate layer selected.
Image > Adjustments > Invert

3. Change the top layer mode to "Overlay".
Keep the top layer selected.

4. Image > Adjustments
> Hue/Saturation (Hue: +180 Saturation: +25 Lightness:
-22)

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