Hi How are you? I am very interested in your project, my name is Jonathan R. Madrigal and I am a 3D specialist, I can create photorealistic images: books, DVDs, and complete environments and for sure it is possible to create an image with 6000x6000pixeles, I have been working in the 3D industrial for 4 year, I am sure i can help you with your project. Please do not hesitate to contact me with any question you may have.