Fix Underexposed Portraits

I need help with fixing severely underexposed portrait photos.

Requirements:
- Adjust exposure and enhance details
- Ensure natural skin tones and colors
- Deliver high-resolution, edited images

Ideal skills:
- Proficiency in Photoshop or Lightroom
- Experience with portrait photo editing
- Attention to detail and color accuracy

Looking for quality work on 1-10 images.