So where are we:
I original was debating flowers back and forth.. and here's why. This grass... is gold, it's quality is unmatched. I was very worried that any flowers would not be able to stand their ground against the grass and would end up looking cheesy. I was.. very right, as 3 test renders showed. So, the best bet was to throw them in patches in the distance where they are not seen in detail, more hinted at. I'm still unsure if I like the effect...
Other changes are obvious, surfacing, addition of a cottage, so forth.