How do you you complete lillykins flower quest on horseisle 2?

To complete the Lillykins Flower quest on Horse Isle 2, you need to collect the specific flowers requested by Lillykins. Start by talking to her to obtain the list of flowers she needs. Then, explore the various islands to find and gather the flowers, which may require diving or searching in different biomes. Once you have all the flowers, return to Lillykins to turn them in and complete the quest.