The collection of humanoid aliens as well as other creatures that have been part of Star Wars has been one of its most defining characteristics.
Star Wars without interesting creatures simply wouldn’t be Star Wars, and yet, the creatures are always recognizable.
This ability to create something that is both understandable and alien goes back to George Lucas himself.
From the first time Luke Skywalker and Obi-Wan Kenobi walked into the Mos Eisley cantina, and we saw the wretched hive of scum and villainy for the first time, fans of Star Wars were truly transported to a galaxy far, far away.