This is Ra'kel, a goblin mage. In my fantasy universe setting thing, goblins are between 1.2m (4') and 1.8m (6') tall on average, have skin that varies between shades of Red, Yellow, Green and Blue, have wild hair which is frequently dyed different vibrant colors (though black is a common natural hair color), and can vary between different levels of physicality similar to other species, meaning there's lean, athletic, obese, stocky and musclebound varieties.

Ra'kel is the athletic muscular type, while boasting some profound magical abilities! He went to Arcane Seminary with Brandur and became friends with the nord mage, eventually meeting Bartholomäus and becoming close friends with the beastman. In the end, Brandur and Ra'kel become somewhat interchangeable, so that one or the other can have fun times with Bartholomäus, depending on which mage is more popular.

...and if you haven't seen this image before now, then you still haven't looked at the art stuff I put on my Twitter page...!