I like your Tokyo shot. I have been living here for more than 10 years now and while I am still attracted by these streets filled with Neons, I find it hard to frame theme in an interesting way. Cutting off a large piece of sky as you did to give some place for the eye to rest is a great idea, and I will try to think about it next time I am trying a similar shot.
If I may though, I think the picture could benefit from opening the shadows a tiny bit. I wouldn't have spotted the little girl on the bottom left if you hadn't mentionned it.
Love the Barcelonna shot as well. I have been there only once but your shot beautifully captures what I remember of it. I especially like how the streets gradually brightens up.