I like this one. It might look more realistic if the bushes were clumped together more; with distance between the clumps.
Use a distribution shader in the blend by input. Reduce the coverage to around 0.3. Check the fractal breakup and increase the scale to about 250. Leave the other settings alone. Last, increase the bushes population density. The default setting is 10 and 10. Use the largest size for the object's scale for these settings.
If the clumps of bushes appear to be too far apart, decrease the lead-in scale of the fractal breakup. Or increase this if they are too close together.
I hope this helps out.