I thought this would be quite manic and stressful, but it's really quite relaxing to grow your little garden of trees. Always tempting to overwater, but you'll just drown all the low-lying plants.
My favourite part was seeing how forests and empty plains emerged organically from the simple rules.
The game is fun as it is, but you could make it more of a 'puzzle' game with goals (keep this tile populated with a tree for x minutes) or telegraphing upcoming wind changes in advance so I might try and plot a more complicated cloud route?