See, I think aesthetically it looks quite nice. But the concept is quite amusing and a bit silly.
It's well composed, but while crucial to the concept, the red-wash makes it look kind of ugly. He could've at least put a black circle around it, like the James Bond intro, for instance. Or, text at the bottom saying something like "Target locked." It's not a very interesting execution of the concept, and it's not a particularly clever spin.
Not to mention, I don't think the concept has much to do with the song, bar the fact that it vaguely resembles a line in it. It's like he heard the line "lamb to the slaughter" and went "oh, that'll do." It doesn't have anything to do with the lyrical
themes. It's not very elegant, and doesn't encapsulate the song at all. "Hey! It's like a... um... lamb!"
I don't hate it, but I'm not impressed.
EDIT: Even putting angel-wings on a lamb would've been better. The lamb to the slaughter is then
implicit, and it's got something to do with the song's title, at the very least.