Concept sketch hand drawn

I'm looking for a talented freelancer to draw me a concept sketch that is to be used commercially. I have a detailed description of what I'd like the concept sketch to be, and I'm looking for something that is realistic in style. My ideal freelancer for this project should have experience creating hand drawn concept sketches. I'm open to suggestions for improvement on the described concept, as long as it fits within the overall theme. If you have the skills to bring my vision to life, I'd love to hear from you.