That hideous little green tuft-beard is remarkably off-putting.

Looks fine to me, a lil cute gem. The placement might seem like it'd hurt if it was pressing into the gums but otherwise don't see the big deal.

IMO, it's a cute little piece of visual interest that serves to distinguish Quetzalcoatl from similar character archetypes.

It's a piercing. And wow, Quetz really is fond of alcohol here.