Yes, these are from Harry Potter but as it says in the description it is 'Lily and Severus' -
* spoiler alert* Lily is Harry Potter's mother but she was murdered by Voldemort along with her husband, James. Severus was infatuated with Lily when he was a teen and from then on and was devastated that she was killed. He then became a professor at Hogwarts as a potions master. He is referred to as Professor Snape. Snape died in the Deathly Hallows because he was killed by Voldemort's snake (Nagini). Hopefully this gets you up to date (I would explain more but that would take a while you might as well watch the movies or read the books) Anyways hope this helps!
I really, really love this! Poor Snape, all disheveled. Lily looks gorgeous too! I love her hair, very, flowing? (heh, sorry, bad at coming up with great descriptive words. just know that I love this whole picture!)