Ironía española

It's said that if you have to explain a joke, then it loses its comedic effect. So I leave it to you to figure out what stands out from the picture below, in which you won't find any sense unless you know Spanish.

Taken in Los Angeles, CA
Ironically well written otherwise

Hint (I wouldn't leave you without one): Orthographic <b> and <v> in Spanish have the same pronunciation, and, so, are commonly involved in spelling mistakes by native speakers.