It was a fun idea! I liked how it was a twist on the classic memory game but with sheep being eaten by wolves over time, stressing the idea that you need to get matches as quick as possible. It may not be completely polished but it's good so far!
Some possible improvements: making it clearer what happens when a sheep dies, how you win a level, what some of the powerups mean, spicing it up a bit with some more diverse mechanics as well.
On the whole, needs a little further development but looking great!