I have a simple sketch and need someone who makes a nice illustration out of it.

I'm looking for a talented artist to create a realistic illustration based on a sketch I have. I'm open to any color scheme, so the artist can work their magic and really bring the image to life. I would like the final illustration to be used as a part of a Visualization presentation for a new product in a PowerPoint presentation and some brochures. Size up to 8x8 inches. If your work meets my expectations, I also may consider to use the illustration for another project, such as our website.