Hey, thanks for the feedback!
I'm sorry for the late reply, for some reason I didn't got a notification from it.
Having control over the sheep was a concept idea, but I didn't had an idea on how to work that out. Redirecting the sheep back to the center (and away from the border) does sound worth trying out.
The plants already come out earlier if you try to keep only a little amount of sheep, back then they were a form of 'anti-cheat' mechanic, but I may alter that mechanic a bit.
The hurt mechanic (or lack off) is indeed unusual, I'll probably mention that on the page.
Think this gives me enough ideas to come up for a new update, once again, thanks for the feedback!