Many thanks for your answer !
We'll pass the kind words to our musician :) !
Also, I am the game designer responsable of the level design and your clearly pointed a bad thing with our game is that you get your head too much on the ceiling, i did a big mistake with this beceaus i under estimated the size of our character and should have putted more height on the jump of the character
Also the level could have been better to guide the player, it's a shame in game design point of view if the player wasn't even able to get out the 1st area
So there is a lot of things i have to improve on the next games I'll work on, thank you for you feedback i really apreciated it :)