AM I KILLING PEOPLE TO GET THEIR COINS???
I guess that would make sense as the character is supposed to be a zombie later on. Game definetly has some foundations set for the future but a couple of important mechanics don't work yet. Tools don't seem to matter as I can punch stuff with an empty hand and the finished structures don't do anything yet (At least I don't think they do). Because of this the game lacks a game loop but as this game is probably one of your first projects it's a reasonable beginning.
As for sugestions I'd like to have a full screen option as it is a bit hard to see details in the browser at this scale and creating a basic logic for the tools would be great as well.
Other than that a good start! just keep learning stuff and you'll make progress along the way :)