With help and encouragement from Emily , Alexander , Gaston and Monique , he stops his vandalism and opens his own gallery .
Louis Moustache is a rat who was painting moustaches on the paintings in the Louvre out of jealousy .
With help and encouragement from Emily , Alexander , Gaston and Monique , Louis Moustache stops his vandalism and opens his own gallery .
Louis Moustache is a rat who was painting moustaches on the paintings in the Louvre out of jealousy .