3D Character Model from Image

I need a medium-detail 3D character model based on a 2D image. The final model should be in STL format and suitable for 3D printing.

Requirements:
- Convert a 2D character image into a 3D model
- Medium detail level
- STL file format
- 3D printing compatibility

Ideal Skills:
- Experience with 3D modeling software (e.g., Blender, ZBrush)
- Strong understanding of character design and anatomy
- Attention to detail and accuracy
- Prior experience with STL file creation and 3D printing processes