It looks like a small part of the hut's walls are above ground. If you take a sllightly soft simple shape of about twice the size of the hut and on that location, you could smooth the terrain there (use a surface shader after the terrain shaders, masked by this simple shape), and increase displacement offset until a 'plateau' is coming up for your cabin to sit on. You can make it as high as you like. For a little bump in that area, smooth by 0.9 or so, not by 1. For some erosion on the sides add a transform shader, increase size of the simple shape, and use that as mask for an added fractal warp shader with low size (10m), after the added surface shader.
I also think our grass is very 'fat' in color, and different from colors in the distance. And did you use size variation? You could add another pop off the same grass but twice as large and a paler color, mix them by masking their distribution by a power fractal (one masked, one inversely masked, or using another PF). So a more patchy environment is created, with localized growth of grass species.