I think it would look tight if the left head was black and white or something. Then if you added some c4d effects they would look tight also. I like this though nice job
Blending looks pretty spot on to me.. Maybe fade the blue between the heads slightly but other than that, it looks pretty frigging hawt. Great job EDIT: Also, on the bigger face, there is a teensy bit of the chin missing..
lol, like right between the heads, where the attachment is; it looks too feathered, it would look cooler if it had a suction sort of effect.
<3 it. Except as said, the blue bit between the two heads needs changing a bit, it's just a bit too harsh (the change from blue to face). Otherwise, hot mate.
Nice, I think if you put some c4d effects around the head it would help a lot. Or just a little brush work. Nice Job!