I'm gonna go on a limb and suggest that if you're going to use hiragana sublegends and Japanese imagery, that you do your due diligence to pick something that's a bit more fleshed out in terms of your theme. It's not wrong to have your set include Japanese sublegends because you want it to, nor would it be my place to tell you not to make a set with a Japanese theme. But in your current state, your novelties and treatment of the Japanese cultural icons are questionable. It'd just be nice if your set wasn't slapping on religious imagery just for aesthetic purposes without regards for what or why they exist. Especially in conjunction with the soap thing. It'd be like making an Italian themed set with pizza novelties next to a few crosses next to the chemical symbol of charcoal, if you're catching my drift.
In the interest of not tearing you down completely, I'd definitely echo what the other person said and suggest pivoting to an orange theme. My recommendation is mikan, which is a variety of citrus that's close to a tangerine and very culturally significant. Hopefully you can take that direction! But please do your due diligence to research before you make changes to this set.
