Hello. I don't know if it was a real question or not (because it was a tag) but the picture of Gwen in the red cape is from the episode "lancelot and guinevere" when they disguise her as morgana which is why she is in morgana's cloak.
Ha, no. That was just me making a really dumb joke in the tags. I did know she had that cloak from Morgana. There is a lot of clothes swapping (I approve!), but that one was actually explained, which was nice.