Love the game! Especially as your first GWJ submission, very well done! I would love to see a full version that has a vs. mode to play with games! I can see myself playing this with a group of friends, trying to be the best archeologist!
My only suggestion would be to be careful of the font for your tutorial, having a bolder black font with a dark blue can muddy the words just a bit, especially with such a bright background.