She's 16 (born June 1997).
Emilie lost R2 singles to a clearly better French girl. She also lost R1 doubles to a very good Chinese team.
Here's a lovely video interview with Emilie after her R1 win (in Danish):
Emilie says she was very nervous as this is her first grand slam appearence. She thinks her play and technique is rather good at the moment and only needs small adjustments. But she also thinks she needs to improve her physique to be really competitive at this level.