In my opinion, it's still unrealistic because you don't know the source is there, and you can't see it.. Perhaps if you just zoomed out a bit or something you could preserve the overall integrity of the peice, and still show what's going on. Also, something I just noticed.. Given where the lighting is, the rust on the gutter seems to be gouging in rather than going out. It also looks rather "Photoshop-bevelish", if you know what I mean. I have to agree with Wyrm here. It almost seems that you took a natural scene and threw in lights that would normally be there just so we could see the whole thing, since we can't see the light source. And the rust doesn't look very "bevelish" as wyrm stated.