2 adverbs to describe how to naturalistic

It lacks also the peculiarly naturalistic effect gained in the cantoria by setting the dancing boys behind the pillars, which undoubtedly, as comparison with the Luca shows, assists realism.

I applied to A.B. Durand, then the president of our Academy, the only rival of Cole, though in a purely naturalistic vein, and a painter of real power in a manner quite his own, which borrowed, however, more from the Dutch than from the Italian feeling, to which Cole inclined.

2 adverbs to describe how to  naturalistic  - Adverbs for  naturalistic