I liked the overall style and atmosphere.

I wonder if the following suggestion could be helpful to you: maybe you could have added some animations to the main character that would suit well the world, nothing super-complex, maybe a like a subtle swivel left and right, as if a child held the character? I think too much stiffness took me out of it. 

But I liked the general shadowing looks and the feeling, as well as the VO, which not many jam games usually have.

That was so cute!  The narration was good and peaceful I was totally absorbed in the world and excited to continue reading on. I also LOVED the sound effect for killing monsters - very satisfying. The art was simple but gorgeous - the simplicity worked well for it. I am not totally sure how well the theme fit. Getting bigger and smaller was fun for the shadows on the wall, but did not connect that much to gameplay or combat (besides fitting into a couple tunnels). Either way very enjoyable indeed!

J'ai beaucoup aimé le fait que l'on voit une ombre projetée sur le mur. Ca a créé son petit effet wow !
Une petite aventure narrative sympathique, au gameplay simple.
Chouette travail pour cette gamejam (surtout si tu as tout fait tout seul).