Don't listen to him; he's just hating.
The vocals were mixed in very good. And it didn't even sound like your mouth were touching, so yeah. Some microphones requires you to touch them with your lips anyways. ;)
The song was pretty good, and the singing was too. There isn't any other reviews saying that the voice was terrible. Vocals like that are still around, may I example FUN? It doesn't have to sound just like everyone's elses. If the quality, the sound, the singing was good, then don't comment on it.
Keep the good work! :)