When both the hands in Ardhachandra hasta are placed over one another and only the Thumbs are interlocked we get the Garuda hasta.
Lets take a look at the viniyoga shloka
Garudarthe Viniyujyate
Its says that this hasta is used to denote a Hawk. It can also denote birds flying. Check out the Garuda Hasta Viniyoga from .20 sec to .36 sec.
can you say after garuda which samuta hasta will come