Hey, this was really fun and well polished! The tile's freshness number (or whatever you'd call it) offers a great bit of strategy. The only thing I didn't quite get was what decided whether or not the boar would die. It may have just been luck but either way I found the "Kill 5 pigs in one year" task impossible even when there was more than six of them on screen. The most I ever killed was two or three. I got a high score of 35. That might be a great score or a terrible one, I wouldn't know. What was your highest score while playtesting?
PS. This is probably the best 'first' game I've played on this site. Good job!