Many of his projects were left undone.
Leonardo was extremely productive, yet he was never in a rush to complete any one thing in particular. Many of his paintings and other creations, including the Mona Lisa, one of his most well-known works, were shelved or judged incomplete.
In addition to the renowned "Mona Lisa", the "Virgin and Child with St. Anne" is an incomplete painting that features the Virgin Mary, a baby Jesus, and Mary's mother, St. Anne, and is also housed at the Louvre in Paris. Another incomplete da Vinci painting, "St. Jerome in the Wilderness," which features the hermit St. Jerome and his companion, a domesticated lion, is on display in one of the Vatican Museums.
The picture "The Adoration of the Magi," which purportedly depicts a representation of the young artist himself, is among da Vinci's unfinished creations and is maybe the most interesting. Since 1670, the artwork that was left unfinished in 1481 has been housed in Florence, Italy's Uffizi Gallery.
Da Vinci also left behind several unfinished inventions in addition to these incomplete paintings. In actuality, there is no proof that any of the artist's inventions have ever been constructed. Likewise, during his lifetime, none of his writings were ever published. Many of his creations, including the Mona Lisa (ca. 1503–1506), were bequeathed to Sala, his close friend, and helper when he died in 1519. Art historians hypothesized that Leonardo had a debilitating sickness that could have caused the right side of his face to become paralyzed, which would have impeded his productivity in his final years.