3D pose and high resolution ARNOLD render needed

Hello, I am fairly new to 3D. I have a 3d human character that was created and rigged in MAYA 2018 for me. The file has a .MB extension. I need the character rendered using ARNOLD in the pose shown in the PDF attachment on page 2. I would like the same quality and lighting of the 3D image shown on page 1. I would like 2 images total. Both with the same pose but, to have two different smiles. One smile with no teeth showing and another smile with top teeth showing. I plan use the posed images in children's books and on my website, and other projects. So, I would like the output to be high resolution (300 DPI) images with transparent background. I have several other poses needed so if this job is successful there will be other jobs.