test5.jpg
due the exiguity of field pattern and shape variation I suggest to limit the palette to:
2/3 textures for cultivated fields green hues (green hues)
2/3 textures for burned or plowed fields (brown hues)
1/2 textures for grass fields (pasture or uncultivated fields on green hues)
1/2 textures for wooded areas
cheers