Realistic Pencil Portrait Drawing

I will provide a medium-resolution reference photo and need it transformed into a highly detailed, realistically shaded pencil portrait. The piece should arrive on A4 paper; however, if your technique... (Budget: ₹600 - ₹1500 INR, Jobs: 3D Modelling, Art Consulting, Illustration, Illustrator, Photoshop, Sketching, Visual Arts)