Enhance Face Realism in Photoshop

I need an expert in Photoshop who can enhance the realism of a face in a photo. The specific aspects that need improvement include skin texture, facial expressions, and the interplay of lighting and shadows. The final product should be a photorealistic image that doesn't look artificially created or overly edited.

Skills and experience ideal for this project:
- Proficiency in Adobe Photoshop
- Strong understanding of photorealistic image editing
- Experience in enhancing skin texture, facial expressions and adjusting lighting and shadows
- Attention to detail and ability to replicate natural variations in facial features.