Lacquer's ref sheet since his hair is a bit tricky to explain...
Lacquer is a full changeling from Queen Jade's Hive (which was formerly Chrysalis's) which is subterranean. He had many friends and supporters, including a young flutterling (a changeling halfling) named Poly. His artistic skill is unmatched there, and Jade appointed him the royal artist. However, though his imagination was great, his knowledge of the outside world was not, and at Jade's urging he enrolled at Canterlot University to help develop his technique and further his education. Twilight and Jade, who are longtime friends, have granted him diplomatic scholarship. Jade also commissioned him to document his journey, and Poly has asked him to "Paint the Sky" since she has never seen it.
More about Lacquer here:
Lacquer is part of the Mane 6 from