Broken English just means that someone is speaking English, but not correctly- or rather, grammatically correct. It's usually reserved as a term for foreigners who are learning the language but making mistakes. They may not know all the words they need or string them along incorrectly.
Voluma and the other dermal fillers used by Drs. Cohen and Swartz are made of a natural substance called hyaluronic acid, which is a water-loving molecule found in the body. Hyaluronic acid fillers have the unique advantage of being reversible with the use of a substance called hyaluronidase.
Xibalba is made of tar and given a sleek look with red skulls for eyes. La Muerte is made of candied sugar and her skin shines like crystals in the sun. The most interesting aspect for the inclusion of wooden dolls is their ability to portray a myriad of different skin tones with different types of wood.