I’m not 100% sure this in the blouse Lily is wearing, but I’m something like 80-90% sure if that helps :).  This is the closest silk peach collarless blouse I could find to Lily’s.  Her hair covers a great lot of the blouse so it’s fairly hard to id, but most of the other collarless blouses out there have pockets and buttons only half way down – this doesn’t!

You can buy her (if it’s correct) blouse HERE for $250.

A cheaper alternative is this one (has a pocket though) HERE for $79

Or this one (from Urban Outfitters) HERE for $39.99