Why this song?
Why a U2 song?
Sorry - personal bias getting in the way.....
The string patch is ultra cheese but that probably suits U2.
Hehe....not a big U2 fan I see?
I'm not a huge U2 fan either, but I have to say this is my favorite song by them.
OK....first of all...."Session Singer"? Sounds like a pretty lofty title for a kid recording a demo in someone's basement. Are you actually paying him?
As far as the tune, I find the drums distant and robotic. They sound distant while the guitar sounds like it's in the same room with me.The vocal performance is ok for a 17 year old, but he sounds like he hasn't reached puberty yet. He has a very "young" voice, which can be cool for some songs. But in this case, it sounds like a boy singing a man's song, for lack of a better way of putting it. He's able to stay on key, but there's absolutely no emotion in that performance.
Overall, there's nothing "BAD" about it, just a few mix issues to make it sound more co-hesive.
This is just a personal opinion, but if you're going to do a cover of such an emotional tune, the one thing that has to be there more than anything else is emotion. I didn't hear any here.