The Girls of Madoka Magica

Over a year ago I drew the Madoka Magica girls (that were known at that time so no Nagisa). I was looking at the picture and I found it impressive how I managed to draw that many characters at once but I hated how bad it looked. So I decided to draw them again except this time, I added Nagisa too.
Images used in the making of the background: [x] [x] [x]