EspañolWhich is better. Miguel Ángel esculpió las tumbas de los Medici en Florencia y la Piedad en Roma. Miguel Ángel talló las tumbas de los Medici en Florencia y la Piedad en Roma.
The answer to your question is
Miguel Ángel esculpió las tumbas de los Medici en Florencia y la Piedad en Roma.
Although tallar and esculpir refer to the same type of verb, tallar means to carve out of a piece of material. Esculpir involves the creation of a shape out of a big piece of material. In other words, ESCULPIR is used to describe something bigger and broader.
The verb "tallar" is most widely associated with materials such as wood. That's why many artesan pieces made out of wood are said to be made by "talladores". Moreover, tallar is also assumed to be a process of more detail, attributed to the delineation, deepening and accentuation of a sculpture.
However, the term "esculpir" is almost synonymous with carving stone. Notice how the terms sculpting and "esculpir" are similar when translated into Spanish. Moreover, whenever Miguel Ángel is spoken of in textbooks he is referred to as an "escultor" and not as a "tallador".
Concisely, Miguel Ángel did both things: he sculpted La Piedad out of marble and he also carved the touches that make this sculpture one of the most memorable in the history of the Renaissance. For the purpose of your question, "esculpir" is what he did first and foremost with these particular pieces.