This is a fun atmospheric horror game with some subtle visuals that work very well. I think the strength of this game is its minimalist approach. I know you said you have just started with Blender, but this is a great example of how 'less is more' can work! The use of stark white meshes, the very limited draw distance, and the fade effect on the ghosts is incredibly effective and also quite nuanced!
I like the grave-robbing mechanic, the use of notes, and the fact that the game is not an avoidance game like most of its kind. I thought it was cool that some players didn't notice the ghosts at first. The only feedback I could give is having a clearer directional objective to get the spade instead of wandering could have helped with the pacing, and some threat might add a bit of tension to the game.
Thanks for submitting Beginner's Guide to Graverobbing to the SCREAM LITE jam!