Family Photo Restoration & Colorization Needed

I need a professional to restore and colorize some old family photos. The first image is of my grandpa. I want the final result to be somewhere in-between natural and vibrant.

Key Tasks:
- Remove stains
- Fix tears and scratches
- Enhance sharpness and detail
- Complete restoration
- Colorization

Skills and Experience Required:
- Proficiency in photo editing software (Photoshop, Lightroom, etc.)
- Experience in photo restoration and colorization
- Attention to detail
- Able to meet project requirements without references.

I don't have reference images to assist with the colorization, so I need someone with a good eye for color to create a balanced and pleasing result.