This game has potential, please keep developing it. :)
You could maybe add some potions to give you a buff when searching like farther sight or movementspeed. Maybe some Upgrades to the number of items you can carry or craft into a potion. Also some more bioms, some music and some npc.
You could make a great story where you are poisoned by an evil witch and need to cure the poison within more time on hand but make the poison more potent by making it give more debuffs the longer it is active. Maybe the snake (very cute sprite btw) has learned poison from a good witch and need help curing her too.
There are so many ideas and directions you could go. :D