Should really have ignored the horizon and sky I think and faced down to fill more (or all) of the frame with just the water course, especially the junction of the streams. Nice take on the theme.
while the image is unique in the challenge and the grass is rendered well, the composition as a whole is rather static. Throw in a bird or moving water or a tractor and it would be much more interesting. POV, DOF good for subject.
Left part of the sky is light from the sun. Maybe cropping that or the sky period for this but maybe in color balance go to the blue and cyan on the black bump up the colors of blue. You can also go to white and the cyan and maybe add more blue there. You can also make white blue with cyan and magenta.