Great game! I had to try a couple times, but I finally got past Grimble. He's tough! I really the idea of having a skill-based minigame to start that dictates how well you'll do in battle. The art is super charming and fits really well. The story-telling is also really well done. I feel like it invites the player to wonder and imagine a bit about the player character and the world. Really well done!
(Also, I'm going to check out those tutorials you posted. After playing this, I'm sure I can learn some more about using GM.)