I'm not shure if this is goth, but it has a lot to do with Lolita and general rebelry! I personally love it, it is not my style, I could never pull it off but it makes me happy when I see them it all their cuteness
But I don't want to drag on with my own explanation, there is a phenomenal clip about this subculture you should really see

Decora is not goth, they are separate subculture, but there is a goth version of it in Europe. I think they listen to J-pop mostly, but I\m not sure
I love how it looks, it is so Kawai But I could also never pull it off, it is a bit too much for me...

This is a bit of too much and a bad taste if you ask me. Dough they are very cute, they remind me of little girls playing in their mum's wardrobe...

I would totally be complete Decora if I lived in Japan! I don't think it would go well in UK...

Few years ago, I would totally do this Now, I don't know... I like to see it, it looks cute but I don think it is sane enough for us Europeans Maybe I can see some anime loving teens doing Decora and getting away with it