Realistic Industry Drawings

I'm seeking a talented illustrator to create realistic drawings focused on the oil and gas industry. The successful freelancer should have a strong portfolio demonstrating their ability to produce high-quality, detailed, and realistic illustrations. Some designs I have put together on AI generator are nice but need modified. I'm also not against original artwork. A little research into designs for the hydraulic fracking and oil and gas oil field industries will show you mostly what I am looking for. It is not much different from what is already available. I am making designs to put on t-shirts. Most of them are in black and white. I will be describing what I need and tweaking the designs until they are exactly what I envision. These designs will be going on t-shirts and hoodies and hard hat stickers I need an artist that I can work with ongoing and I would like to use the same person for all of the designs. Almost every picture will also have my company slogan into the picture. I am probably looking for between 10 and 30 designs in the near future and I'm willing to see your artwork and what you can sell to me.

Key Requirements:
- Expertise in realistic drawing style
- Strong illustration portfolio
- Knowledge of or experience in the oil and gas industry
- Ability to create detailed and high-quality illustrations