The skin and face looks well done. He has a 'soft' look to his face, that works well for this particular mini, as it portrays a 'fresh faced young man'...The birthmark color is a little off, but the rest is great!
Good guess funnymouth. It's not a pink fireball afterall, but a pink Twin-Tailed Comet....AKA the "Hammer of Sigmar" otherwise known as "Sigmar's Hammer". It's not usually portrayed as so....pink however, but more often as a fiery red and orange blazing comet. The mini, I love the face, the base, his hair and the photo. Well done all around.