Looks like firework, this Mail Art from Kellen Raissa, Brasil. It's the first piece I've received from her.
Blue is always good... and cool. Another piece from Momkat, Greece, in 'our' blue tradition. This one might be related to the firework / end of the year theme.
Which story is Erni Bär, Germany, telling with this collage? This time, I don't have a clue, nor fantasy ... Must be the end of the year ;)
Jon Foster, USA, made a collage that is a sticker! No doubt about that!
Thank you all for your Mail Art.