This was a fun game! Not sure it's a tiny world though, Feels very big and scary to me especially at night when the zombies come out and I am hugging the campfire until 5am.
I can see most of your time must be spend on the inventory/crafting menu because it's really quite detailed and very well made. For some dumb reason, I confused my coals with my stones in the inventory and I spend five minute freaking out at the game for not giving me stones. (not my proudest moment)
Seems like you might have run out of time to spend on the terrain graphic especially where the water meets the land, but it is a pretty big world that you have created here and I can see it difficult to keep everything up to a certain standard.
I dealt with the keyboard/mouse combination ok, but I think you should aim for all mouse control if you ever decide to take this game further for a smoother control experience.
Overall while this game could use some more polish, it's got an amazing amount of playable contents for a game that is done in a week and I enjoyed playing it.