I didn't like that I couldn't move first, even if I wanted to, at first I thought the game just didn't work, but then, I figured out, you HAD to wait until the other player moved. I realize that the point is to react to their movement, but I wanted to be able to move anyway.
I liked the distractions - occasional lightening / bird. I think the game matched the theme well.
Would have been cool to have several different moves, so you had to react with the correct one.
However, I realize 3 hours is short, so great job!