River color adjustment, take two

I just couldn't get used to seeing the river with the Faux paint. A friend of mine told me that it looked like Shag Carpet and I just couldn't unsee that!!I started looking at all kinds of images of the Ouachita river in different locations and the more I looked, the more blind I became.

I don't think I liked the very muddy brownish orange water. Might be too stark for the scene?  Plus I don't think the surface would reflect an image very well due it being lighter.

So I decided to go back to a green tone, but I wanted it slightly muddy.  I opted to get more of the Tamiya earth and olive from Hobby Town today while we were out running errands.

This time I started with the earth and mixed a bunch of the olive to it and sprayed a coat, but it was too green, way too much yellow once it was on the river bed.

So I mixed more of the olive into the mix and sprayed another coat, still too greenish yellow.  Added more green and I think I got real close. Stepped away and came back in a few, but it still looked to green, more brownish, but still too green.

So I cleaned out the airbrush once more and sprayed a straight coat of olive, but sprayed it in a wide, random pattern, not a full coverage.  I think this looks better?