I finally drew them, I'm so happy YAY!!! In general, for their design, I used the eastern theme. And since they love treasure, I added gold jewelry to them. After all, they love themselves, so wearing gold would be cool for them. But they remain riders anyway.

UPDAAATE!

Well, finally I decided to add what kind of spirit they are.

Jet the hawk: so he's the spirit of will. Why? Becouse, despite the fact that he behaves like an egoist, he has a good trait — his sense of purpose. He wants to be the best, and even after failures he does not give up, but continues to go towards his goal. Not everyone has the will to cultivate to be the best, I think this is a great feature.

Wave the swallow: she's spirit of headway (I hope I can convey the meaning of this word in the right way). In general, Wave always improves her mechanical skills, which means it moves forward until it reaches success, and I thought it would be great if she was such a spirit, because the world does not stand still, it progresses, as well as she.

Storm the albatross: Storm the spirit of sincerity. Why I decided so, because despite the fact that he is a little stupid, he is always sincere with everyone. He will apologize if he offends someone, or he will be happy if he is praised. He will not pretend, because he does not need it.
(although sometimes due to the fact that he does not can to control his emotions, this leads to disastrous consequences)