Score at Every JourneyCompute your score at every journey just as you would as if it was the final journey. Then your final score is the sum of your three journey scores.
At each journey, score every element completely. This simple change creates extra tension between the structures that I really like. For instance, you can score extra points if you create a small empire before the first journey appears, whereas in the normal game you can wait until later in the game to being closing up your empire. It also creates natural changes in pace between playing and scoring.
Tall GardenChange the Garden scoring formula to 5*L + 3*H.
It is a little more interesting when you get more points for making your Garden taller; a tall branch takes more planning and commitment!
Eternal LegaciesEternal Legacies are special versions of the legacy elements. Each one is worth it's normal score plus a bonus of 100 points.
The Eternal Legacies are pristine; you can't add useless numbers or you no longer have an eternal legacy!