Simple, but enjoyable
I think that you've created quite a little challenge of a game here, that does require some skill and problem solving / memory to get past them. I think that there is a great potential for expanding upon this and having two or even three progressions of quests going at the same time. The number of coconuts should be able to be traded to the stall holder sooner, as bit-parts, just to keep inventory space free. You're able to have a fourth wall joke there as well, like "Nah, I trust you - I'm the only one who seems to want to give you coconuts at the moment, because everyone else wants something around here."
With the gameplay, you've done a good job of making it look like one of the more classic pixelated games, while adding your own artwork to the piece, so a good job there. I would consider expanding the game world, since those numbers of houses and relatively few screens didn't challenge enough, so people need to be given a good workout mentally with a game like this.
Keep working at it and I'm sure that you're pieces can get a lot better over the next few installments of the game.
[Review Request Club]