Canvas Shoulder Bag Prototype

Hi I'm an artist who is designing bags/purses.
I have a detailed sketch for a custom shoulder bag and now need a skilled maker to turn those drawings into a fully-functional prototype. The design calls for sturdy canvas fabric, compartments for organization, that are mostly external zipper pockets.

What I need from you:
• A brief review of my design files, with any suggestions to improve durability and manufacturing efficiency.
• Creation of a clean pattern and cut list, including hardware specs (zips, buckles, lining, etc.).
• One finished prototype in canvas that accurately reflects the look, structure, and functionality of the final product.

Once we are both satisfied with the prototype, I intend to move toward small-batch production, so a maker who can document the build steps or even help source materials would be ideal.
Clear photos of the ins and outs of the product are perfect and the final sample to my address will complete the job.

If you have previous experience prototyping bags—especially shoulder or messenger styles—please send over photos or a short portfolio note so I can see the quality of your work. I look forward to collaborating and bringing this design to life.