Romantic and landscape views always remained his favorite subject: he ranged from Liguria to Tuscany and Latium, from Abruzzo to Calabria (Il Trasimeno veduto dai boschi presso S. Albino, Naufragio presso Livorno, Prati e pinete di Suese, awarded a gold medal at the Parma Exposition), re-proposing even in his scagliola works his favorite themes, frequently combining the study of landscape with great compositional freedom. In the geometric partitioning of the plane, he inserts his landscapes into a frame (usually vegetal): sometimes of bucolic taste, with mountains, meadows, woods and streams, at other times he chooses city views and monuments of classicism. The circular top of a small table (part of the furnishings of the La Petraia residence, owned by the Medici since the 16th century), decorated with a landscape and framed by a frieze of green leaves, is attributed to him; also attributed to his workshop is the rectangular top depicting Piazza dei Miracoli, enclosed in a frame with swans and fruit, which went to auction at Christie's, and the round one,with a view of St. Peter's Square, auctioned at Sotheby's. Toward the end of his career, well known and established, he was commissioned to paint the plastic-pictorial decoration of the vault of Villa Mimbelli in Livorno, (now home to the Museo Civico Giovanni Fattori), which Pietro completed with the collaboration of his brother Giuseppe. His works are in important private collections and major museums, such as the Los Angeles County Museum of Art. (source euripides7)