@Shadowcatcher
While I myself am no smith, I had taken up enough interest in these forms of archaic weaponry to be able to distinguish most Sword-like objects from authentically made tools to kill. It's likely not as great as some of you have have donned and used these weapons in combat, but I still would like to provide feedback, if willing. And while I do understand my place as a mere player of this RP and no GM, I only wish to provide my meager assistance with my observations.
The issue with the sword you've chosen mainly comes from that it seems rather ornate and matches the description of what a lot of Sword-like objects are; beautiful to look at, and cumbersome to use as weapons at best. The Handle design beings back memories of Zweihanders, typically large swords used with two hands, which I'm not sure are developed in these times. If I'm assuming that your character is a shield user as well, her sword would have to be the right size for her to be able to handle it normally. So the idea of a longsword with a handle design like that seems rather... Impractical.
As for the armor, it seems rather form fitting. Like the sword, it's good to look at, not so much for serious use. It's a breast plate in a very literal term. And from what I've observed form other CS's, not many smiths have the skill or dedication to make armor plates that would acute her form like that. But since she is of royalty, she may have personal armorers who would be capable of making her personalization armor, but even so her choice of protection seems more ceremonial than practical. I wouldn't think it'll hold up against a solid blow from a mace. Or at least, less so than other armors.
As for the shield, it's also rather ornate, but you can't really go wrong with a metal targe. It may come to question however if the shield is also capable of serving as a sheath, which is a fairly advanced idea. Again, since your character is royalty she likely has access to those who would be more than willing to custom design her equipment. Whether or not anyone can is what's being questioned.
Those are merely my observations. I hope they are helpful, under any other circumstance they look fine to me. I'm always willing to levy realism for the sake of entertainment within reason. Armor's armor, and as long as it's not a string bikini with metal pasties, it will serve well enough for what you say it should. Not my choice of course, but my thoughts.