Such painters as Fuseli, Goya, Gericault, and Friedrich employed dramatic subjects, severe light and dark contrasts, and violent compositions to create an emotional charge in their work.
Augustin
Sauveterre
Fournier
Delacroix

Delacroix

Explanation:

At the time of the July Revolution of 1830. Delacroix showed a strong patriotic fervor, characteristic of the Romantics, though he himself did not participate in tumultuous historical events. Nevertheless, his work "Liberty leading the people" is an echo of the substance of the events of that time. The composition is organized dynamically, the movement in it is pronounced, light, dark and surfaces that are in the shade suggest depth and achieve a complete illusion of space. The main means of expression is color and its line and form are subordinated to it. The figures are allegorical, each representing a social stature, while at the center of this parable is "Mother France" - a young, bare-chested girl who decisively bears the French flag.

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

producing or giving rise torelating to or engaged in the production of goods, crops, or other commodities.

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.