Very good and visually polished game!
1) Tutorial - I really liked your take on a tutorial, very clever. One thought though - I understand, that this is intentional and should be clear to me, but I missed some sort of "you are correct" label when I did things right.
2) Artstyle - really like that one, I don't know how you did this, but it is stunning. Nothing helpful to add here from my side.
3) General experience - sadly this is not my type of games, and first time I played it without tutorial and did not understand most of the gameplay. But tutorial really helped me (but still I died in the end :D )
Nice job!