I've only used Blender to pose objects in Blender files I have found online. I received this file from an artist who is more knowledgeable about shading and customizing. I posed it and added another object and camera but when I try to render the image with Cycles everything looks fine until the last second, the final image comes out white! 

Here is the example:

While rendering:
[![while rendering it looks fine][1]][1]


Final product:
[![final image is white/transparent!][2]][2]


Any idea what could be fixed? I know he added an HDRI and did a lot with the shading.

Any way I could get this to render how it looks during the render? Here are some screenshots of what the file looks like:

[![enter image description here][3]][3]

[![enter image description here][4]][4]


  [1]: https://i.sstatic.net/V3kSo.png
  [2]: https://i.sstatic.net/IYvzv.jpg
  [3]: https://i.sstatic.net/ZqijG.jpg
  [4]: https://i.sstatic.net/MwuV5.jpg