The dragons were mostly Asian-like in nature but there may have been some Western ones tacked on as well.
A fantasy middle-grade novel I read in the mid-80s, with a green Chinese dragon on the cover. The dragon belonged to a Chinese girl who rode it in a circus and put on a thick Chinese accent for the punters, but could actually speak English perfectly.
She was one of the magical characters helping the two child protagonists on their adventure: another was a witch who had long hair which flew about when she was casting spells. She made an illusory double of one of the children (called a Semblance) so they wouldn’t be missed.
At one point the protagonists and their flying carpet were swallowed by some kind of evil spirit that had a dark stormy space inside it. They started calling the spirit the Glutton to make fun of it, and the witch put her head in her hands as if she was despairing so nobody could see her hair flying about when she used her magic to get them out.