La respuesta esta en la lista que coloque como pista hay letrasque son para confundir

The answer is in the list I provided as a clue. There are letters in the picture that are used to confuse the reader.

Pista 3

Español

Lo que da la respuerta no es lo que esta en lafoto sino lo que falta y deveria estar

Fa fe fi fu

Ingles

What gives the answer isn't what's in the photo, but what's missing and should be there.

fa fe fi fu