Very pretty. I've never heard of it before. I'm a little surprised it wouldn't be spelled Annelena, but I'm hardly an expert.
My dh and his siblings didn't have mns. They got to pick their (Catholic) confirmation names at 16 and that's what each of them use as their mns to this day. I've always thought it would be nice to let a child pick their own mn at 16. Then again, my dh wanted to pick
Napoleon but the priest wouldn't let him. I almost wish he were
Peter Napoleon . . . . He ended up using his father's name,
Thomas.