Cavalier Noir - A high-quality rendering of a Lego Sculpture

Hi I'm looking to have my unfinished sculpture rendered in high quality, 3D low poly style. The sculpture will feature a black child warrior astride a black unicorn. Here are some images so you understand the aesthetics. I need this render delivered by Friday morning latest and it is crucial the finished image looks very fluid and has a realistic form. Before I hire anyone else for this I need to know that they understand the style I am looking for and they know they can do it successfully. I've attached images of my unfinished sculpture, as well as the posture I need and an example of a low poly unicorn I really like. This job will require skill to digitally finish the sculpture with a focus on form rather detail. Please let me know if you are able to do this.