Learn Portuguese (Portugal): Foi o autarca quem tirou o véu, e eis o resultado! - It was the mayor who took off the veil, and behold the result!

While aqui está o resultado ("here is the result") is perfectly correct, eis adds a dramatic, presentational flair. It acts as a presentational particle that translates closer to "behold" or "voilà". It is ideal for introducing a grand reveal, a sudden conclusion, or unveiling a final project.

Why does the sentence use "quem" instead of "que" in "Foi o autarca quem tirou"?

When emphasizing who performed an action, Portuguese frequently uses the cleft structure foi + [person] + quem + [verb]. You could grammatically say foi o autarca que tirou, but using quem is highly preferred and sounds more natural when the subject is a specific person. Note that when you use quem, the following verb is always forced into the third-person singular, even if the person was "I" or "you" (e.g., Fui eu quem tirou).

What exactly is an "autarca"? Is it just another word for mayor?

It is often used that way, but it's slightly broader. An autarca refers to any elected official in local government (an autarquia), such as a parish council member. However, in Portuguese journalism and everyday conversation, it is most frequently used as a shorthand synonym for the mayor (o presidente da câmara).

Is "tirou o véu" used metaphorically here, or just for a physical unveiling?

It can be both! Just like "unveil" in English, tirar o véu (literally "to take off the veil") is used for physical ceremonies, like revealing a statue or a plaque. However, at a B2 level, you'll also see it used frequently in news and literature as a metaphor for revealing a secret, launching a new policy, or exposing the truth.