Sack dress style long-sleeve OP from the Taobao brand Smoothy! Featuring a lovely narwhal print. 

This dress is somewhat damaged: there are runs/pulled threads all over, I've included photos of some of them. There are quite a few of them, but they're not very noticeable from afar when worn. Additionally, there is a small tear in the fabric ruffle at the hem (last photo), it shouldn't be too hard to fix for someone with more sewing experience than me. It also didn't come with the neck bow shown in the stock photo.
It's still a beautiful and very comfy dress, and it has a pocket! It's a poly/cotton mix with a cotton lining.

It says size L, and I tried to take some measurements: I think it's around a 95 cm bust, 44 cm shoulder width, and 91 cm total length? These may be slightly off as I've taken them myself.

From a smoke and pet-free home!