Well, the pipe doesn't touch the thing it is "resting" on.

In the reflection of the sail boat, i don't see something at the end (right) of the boat that is in the reflection.

I don't know about this one, but that shadow along the right wall doesn't seem right.

No one in there right mind would be doing this at 5 to 3PM, or even AM for that matter. Well, that would explain why the pipe looks like it has never been used, heh.

That little red circle in the center of the table shouldn't reflect the same way as the outter part, unless it's the exact same material.

And

From this angle, it doesn't look like the end of the bottle refracts in right.

Well, I doubt if that is any of them, heh but that's what I saw.