Ken does soccer and judo, Daisuke does soccer, Iori does kendo, Takeru does basketball, and Hikari does dance. So I thought it would be cool if Miyako did something like archery. There are mounted archers who can hit a target, while in movement! Bingo!
(Please ignore that Holsmon’s head wing thing is totally in the way and that he should only have two claws on the hind legs. And that Miyako probably wouldn’t wear sneaker boots with her uniform but then maybe she totally would.)