The Inferno's son, a dragon by the name of Doku, was given the ability at birth by the One Who Created The World to shapeshift. It's served him well with his curiosity and wellbeing, but often times if he gets too excited it sticks him in the form he's in at the time. That was what happened when Doku first decided to morph into a human, and he was stuck like that for a little over two months. Doku has the ability to change his body's shape, but not its colors/markings etc, hence the weird skin. He kept his tail so that, if he was forced to face the dragons, they would recognize him as one of them. He's shunned for walking among the humans for so long by his family (especially his daughters and father) but he couldn't have gone back if he had wanted to, lest he be killed for being a human in the Dragonland. So yeah, he looks really young, but that's just because I can't draw people worth beans. This piece is part of a study I'm doing to get better. Hopefully drawing enough and looking at references will help.