Is he interested in/attracted to me?

[Yep it is me]

Yes he is attracted to you and feels shy. He is seeing the things that you like on Facebook (saves him asking who your favorite bands are etc) By him copying or liking the same things as you may be his way of letting you know that you have a lot in common.

Why don't you send him a private message and just say 'Hello, how are the holidays treating you?'

Nothing more, nothing less. It gives him the opportunity of talking to you without opening his mouth.

He might feel a bit intimidated because you are in a year above him.

Keep any conversations casual and see how you go.

Good luck.