Under Jahangir's patronage, what achievement did Mughal painting reach?

Naturalism and scientific accuracy of the highest degree

Answer:  Naturalism and scientific accuracy of the highest degree
Under Jahangir's patronage, Mughal painting achieved naturalism and scientific accuracy of the highest degree.

Jahangir employed Aqa Riza, a well-known Iranian painter and his son Abul Hasan to achieve unparalleled sophistication in painting. Despite the formalised and established imperial atelier of Akbar, the keen patron in Jahangir rebelled to set his own atelier alongside his father’s. Prince Salim came to be known as Jahangir — the World Seizer once he acquired the Mughal throne after his return from Allahabad. Tuzuk-i-Jahangiri, the memoirs of Jahangir, tells about his great interest in arts and his efforts of achieving scientific correctness in the rendering flora and fauna that interested the Emperor the most. Under his patronage, the Mughal painting achieved naturalism and scientific accuracy of the highest degree. The curiosity and wonderment that the Emperor had for nature and people around him is reflected in the works that he commissioned.