A really good, innovative game. With more time, I think a short intro would help (skippable for those who like to rush in). With the pixel art, half of yours is black outlines (all the sheep), and the other half is not (the dragon hand and background). Be consistent; pick one and stick to it. It makes a difference in the look and feel. I would also put a small border and panel backdrop around the timing and score UI elements.
Great submission.