Great game feel and great take on the theme! This has a fair amount of depth as you try for a high score.
After several attempts, I was still not sure what the best thing to do was after killing too many sheep where it was then BELOW the needed count. Clearing out the pen after that point seemed like the best thing because it would then spawn a new wave of sheep, but I thought I heard you say during the game jam livestream that clearing the pen makes the BIG SHEEP spawn as a punishment, so that confused me.