Selfie Enhancement and Background Change

I need a selfie photo enhanced with a few amendments.

Requirements:
- Remove blemishes and smooth skin.
- Focus enhancement on the face.
- Change the background to something more appealing.

Ideal Skills:
- Proficiency in photo editing software (e.g., Photoshop, Lightroom).
- Experience with portrait retouching.
- Ability to change backgrounds seamlessly.
- Attention to detail and good aesthetic sense.

Please provide a sample of similar work done. Looking forward to your bids!