Sketch making

I'm looking for an experienced sketch artist to create a portrait-style, realistic sketch measuring up to A3 size. I need someone who can accurately capture emotions and subtle details, and has a strong understanding of color theory and composition. The project should be completed within a reasonable timeframe, and will require regular updates along the way. If you think you’re the perfect fit for this job, I’d love to hear from you and see some of your previous work. Thanks in advance!