That looks really good.
Just one hint from me - give the base some more love.
The edge could be flattened. Currently the mold line is an eye-catcher of the wrong type.
And take care of the gap between the base and the gras.
Lastly take a time and paint over the gras to give it more live. I usually do one or two drybrushes with earth tones or different greens.
All that are minor adjustments, but with a great effect. When i look at your skills in painting and terrain making, that shouldn't be any problem for you. ;)