Convert Photo Into Textured STL

I already have a high-resolution photo of the subject and now need it turned into a 3D model while preserving every visible texture detail. The end goal is a clean, watertight STL ready for 3D printing, so please translate the texture into surface geometry or vertex colour data that will survive export to STL. Scale is flexible—just keep the proportions faithful to the image—and feel free to recommend a printable size if that helps you optimise wall thickness or mesh density.

Deliverables
• One STL file, error-free and ready for slicing
• A brief note on any print-specific considerations (minimum feature size, suggested layer height, etc.)

I’ll provide the reference photo as soon as we start. Looking forward to a realistic, print-ready result.