The model was made by Marius Poersel using ZBrush and Arnold.
Have a look at this incredible 3D recreation of Chris Hemsworth, an Australian actor known to many for playing Thor in the MCU movies, created by Digital Sculptor Marius Poersel.
Created following Kris Costa's Character Creation course, the model was made entirely by hand using ZBrush, allowing the artist to "get a better understanding how forms and colors are built together to represent a human face". Additionally, the creator utilized Arnold to render the sculpt.