Context plays a huge part in this type of situation. A few years back there was a famous rugby player of Fijian heritage playing in our national team, dark skinned man who wore a huge afro, he developed a big following for that afro and his physical playing style. Anyway, some young white kid who was a massive fan one day went to see him play in a match and dressed up in costume like this player, the kid wore the jersey with the name and number on the back, a big afro wig and painted his skin dark. The player noticed this kid in costume and after the match invited him and the kids dad to meet the team afterwards. The young fan got a bunch of photographs with that player and the rest of the team. When photos got published on Facebook is when the trouble began with people brandishing that kids costume as being racist, such was the backlash the player himself had to come to the kid and the fathers defence saying he wasn't offended at all and the reason he invited the kids to the dressing rooms was because he loved the costume. The thing is if a person of one race has some affinity to a character of a different race and wants to cosplay as them then isn't that a good thing? Why are we trying to place archaic mentalities to the modern world? Yeah stuffed happened decades ago that should be condemned but this situation is not someone trying to offend anyone and to belittle a race of people, she's trying to celebrate this character in the artistic way she knows best, and cosplaying is just the ultimate form of fan art.