Sculpted and textured in ZBrush, with Photoshop work on the eye and comping. I was after something a bit alien with an approachable, intelligent flavour.
You can view the original 2.01MB, 3046px x 1904px version here.
And here's an image of different beetle horns I used as reference for his chiny chin chin (Mother Nature's always got something way zanier)...