Hello! Welcome to Feedback Quest 8! My name's Hythrain, a co-host and one of the streamers for this event! This feedback is being written live as I stream your game! If you're interested in seeing my live reaction, let me know and I can send you a link to the VOD once it's posted to YouTube!
So my normal approach for any game in these events is simple: I get the game, make sure it's not a virus, then play it with as little information on how to play as possible. This way, I can judge how intuitively someone can figure out the game. Only if it's obvious that I need to read more will I do so. I note this so you can get a sense where some of these feedback comes from. In addition, I want to note that feedback and rating are different; don't use this feedback to gauge what I'll rate, nor should you view my rating as entirely indicative of my feedback.
So I'm gonna be honest here... I did not understand at all that you could get more buildings from the one building on the other island. Instead, I was spending my entire time focusing on trying to grow more stuff and get more plots to grow more stuff. Which was a lot of time, because the return you get is abysmal. You either plant one plant that nets you a 100% return but you constantly have to water them, or you plant one that nets you a 50% return but you don't have to maintain it anywhere near as much. Meanwhile, to buy a new plot is $20, to expand the land is $15 and everything the building has is $100 or more (meaning you have to harvest at least 100 plants to get one thing). That is just incredibly slow and not fun. Instead, it became boring and monotonous. At points my vision would blur out as I just had no real focus on the game and was playing mindlessly. That's not exactly a great way for someone to view the game.
On top of making plants have more value, you should also direct the player to want to access the building.
Lastly, the click and drag to sell thing is... honestly, just not a good idea. Heck, the whole set up of "click and drag to drop one item, hold shift to drop them all" is even worse. Like, is there a purpose to keeping the plants you're going to sell? Do they have value in another way? If not, then there's no reason for a player to not just sell everything they have on hand (and would made the storage box redundant due to a lack of different items at this time). On top of just making it a click to pick up, click to drop thing, you should drop the use of shift entirely until you have something that requires you to hold onto the players you're growing.