In this video, I will show how to set up a low-key lighting style in Maya and Arnold. This style has been around for centuries, it dating back to the 15th century when Leonardo da Vinci started using strong tonal contrast between dark and light to achieve a dramatic form.
You can get the 3d model of the horse head here.

Focus attention on the contours of the subject (left image), Give more focus on inner part of the subject (right image)
Consider that this video is sped up 3 times faster than normal. Finally, if you have any trouble, feel free to ask, you can leave a comment at the bottom. I will be happy to answer them.