Start digging would have been a better name and fit the theme better.
Fun: simple, adding a depth meter gave the player a goal to play again, could have added some collectables like treasures, also the enemy became too fast later on, I don't know if there is a way to dodge him, and the movement was a bit stiff
Presentation: I like the art style, straightforward, nothing distracting
creativity: I can see your touch there, I like that, changing the name to something like start digging would have fit the theme better,
over all it's good 😁