In English there is the idiom "Break a leg", is there a spanish equiviant to it.

Imagine that you're in the "prado museum" after hours and one of the works of art comes to life. write about this character in spanish and the kind of conversations you imagine you might have with the person. use adjectives of emotion to describe how the character feels about coming to life after the museum closes each night. also use the vocabulary and verbs needed to describe the opinions that the character has about his or her own artist and various other artists.