Portrait Skin Tone Correction

I have a set of portrait images that look flat and a little off-color straight out of the camera, and I want them to feel vibrant yet true to life. The sole objective is to enhance natural skin tones so the subjects look healthy and well-lit without crossing into an over-processed or stylised look... (Budget: ₹600 - ₹1500 INR, Jobs: Adobe Photoshop, Image Processing, Photo Editing, Photo Retouching, Photography, Photoshop, Photoshop Design, Visual Arts)