Here we have a really nice rendition of Ernst Neckbreaker by Puyon.

Captain Neckbreaker is one of the top-tier Black Riders, a motorcycle-based special forces team reporting to King Fairwater. Puyon's version was titled "Heads will fly" which is a very apt description of what is likely to happen when he's wearing that expression.

Ernst features prominently in 'Dark Lord Rising', but I am rather fond of him (so is Puyon, apparently) so he'll also be reappearing in 'The Bounty Project', which is set a few years after Epsilon.

There is also a short story in development by Aisha DeCabre which features him as a young man.

Puyon's original piece is on FA here: http://www.furaffinity.net/view/25482229/