I love the art style and the concept but there are a few things I would add, primarily other ways to make money than selling flowers around the island that you might need to buy using money, like fishing or something, and selling wood providing an incentive to expolore the island. I would also make each flower upgrade grow faster maybe, or at lease make them more profitable than the one that came beore it since the rose is the most cost efficient per trip but its not clear how important time is for maximizing profits. I did LOVE the intro sequence