The snarling, Billy Idol lip needs a little work, I fear, only because the mesh itself has that Betty Boop aspect to it that we see in number two (something on that in a moment). Perhaps if you thin the lip down, the snarl might be more natural. The second looks quite remarkable; is that your own texture? If so, note that the moustache is quite heavy around the nose, but doesn't quite extend all the way to the lips. The lips suffer from the same collagen overdose as number one, but again by thinning them down, youll probably pull it together nicely. The third is extraordinary. Lovely work.