I would like to post my pictures as well. I've been looking and hoping that there was a Severus Snape thread on here. He's one of the more popular, and more difficult, characters to costume as and I couldn't help but join the bandwagon. He's my absolute favorite character.
The pictures I'm going to post are actually version 2.0 of my Snape costume. The first one was made by a dear friend of mine and I outgrew it (sadly). I kind of use the cloak as a blanket now and then, haha! My fiancee made me this version for the final film.
The coat and cloak are both made of different fabrics. The coat is suiting and the cloak is cotton linen (and it flows nicely). The arms have all nine buttons and all are functional. The chest is inaccurate as it only has nine buttons, but it gives the illusion that I have them all, and the collar still flares nicely. Even though it's not perfect, I'm happy with just how accurate we were able to make it.
And the movie was amazing. Best crowd I've ever had in a theater. I know it was forever ago, but it was one of the best costuming experiences I've had. The feedback I received was amazing.
Hope you like! (Sorry that the last two are huge! But I wanted to show the back of the coat since it's done in more of an old English frock coat-type style. It's the only picture I have of it. I also wanted to show the swallow tail in the cloak.)