Natural Color Correction + retouch for 50+ Photos

I have a batch of more than fifty high-resolution images that all need consistent, natural-looking color correction. Every file already looks sharp; I just need the colors balanced so skin tones stay accurate,... (Budget: $10 - $30 USD, Jobs: Digital Art, Image Analysis, Image Consultation, Image Processing, Photo Editing, Photo Retouching, Photography, Photoshop, Photoshop Design, Visual Design)