This is good start to your game programming career :) I really like the cut-scene that gets you ready for the game. You need to put some controls in the game so players know how to get into the ship and control it. I couldn't work out what to do with the collectables (green things) but that might be because my French isn't too great :)
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The like the fact that the level layout seems to be symmetrical which adds to disorientation when looking for the totems. It would've been nice to have a function for switching the torch on/off. Maybe a battery saver or a 'low light' mode so you can still partially see? Also it's worth giving the player the option to replay the game when you win/lose :)
Great idea to generate different characters based on a small pool of meshes and materials! I noticed you inverted the camera looking left/right. It might be worth giving the player the option.