The second one is from Gokinjo Monogatari and/or Paradise Kiss. Both mangas have the same author, Ai Yazawa, and take place in the same world with some of the same characters. The girl is Miwako or her sister Mikako (they look alike). They are in both mangas.
I don't know any of the others... Hope that helps!
I don't know any of the others... Hope that helps!