Hello Pierre, the game looks great, funny and engaging, I've just completed the first 4-levels part! I'm gonna start Part 2 as soon as I can (I'm a backer of the project on Ulule). I'm more than happy to help king Angoulafre, I've been helping him since 1992, basically. :-D
BTW, I think I found a bug: the game doesn't feature a manual save system, but F5 still brings up a garbled save/load menu. I don't think you did this on purpose, didn't you? That must be AGS' standard behaviour.