I need this 3D Model stl file.Backside will be flat

I am looking for a skilled 3D designer who can create a STL file for a 3D model that I need. The purpose of this model is for printing, so it should be designed with that in mind. The desired size of the model is medium, and the backside should be flat.

Skills and experience needed for this project:
- Proficiency in 3D modeling software
- Experience in creating STL files
- Knowledge of proper design considerations for 3D printing