Example (click to enlarge):

The lace on the fake shirt above is a simpler design and shaped in a more circular pattern, whereas the authentic lace is more intricate, and shaped in an elongated oval pattern. The fake rubber logo tag is not quite as long as the authentic tag. If you look closely you may also note that the fake letters are vertically elongated slightly more than the authentic letters. This elongation holds true for most of the fake Galliano logos out there (be they on shoes, pants, t-shirt armbands, etc.). It is a subtle difference, but if you compare two pictures side by side you can see it.
Example (click to enlarge):

This is another comparison photo of the lace. This fake lace is in a different pattern than the first example, but, you guessed it.... still fake. This fake rubber logo tag shares the same disproportions as the first example. Below are some more examples.
Example (click to enlarge):

Example (click to enlarge):
