High-Quality Image Enhancement for Fabric Print

I need a high-quality image created from an existing, lower quality one. The final image will be printed on 53" wide fabric.

Requirements:
- Enhance existing image to high resolution
- Ensure colors and details are vivid for fabric printing
- Provide image in suitable format for large fabric print

Ideal Skills and Experience:
- Proficient in image editing software (Photoshop, GIMP, etc.)
- Experience with fabric print preparation
- Strong attention to detail and color accuracy

Please provide a sample of previous work and an estimated timeline.