It's fine as it is. If you have any questions regarding your story, don't worry about asking. These kind of stories are rare to come across as there is little to no fanfiction of Kilala Princess online anywhere whatsoever. I wish I could count Kingdom Hearts Lost Reason as a Kilala Princess Fanfiction, but it's more of a Tri-Xover (It contains elements from Kingdom Hearts, Epic Mickey, and Kilala Princess respectfully).
I can't compare your story to any Kilala Princess Fanfic or even the original manga itself. So don't worry about it. Now if Disney decides to renew Kilala Princess in the future and revive the series, you could submit this as a draft to see if it makes it in. Who knows? It could end up being a Kingdom Hearts X Kilala Princess manga series. Hope that clears everything up.