The graphics are adorable! :D I love the concept, the way it was represented and the AD! It's really beautiful! It makes you want to see more ;)
Small remarks : make a less rigid character (because it's a plateformer but especially because we can't see where we're going (it's normal of course) => it would reinforce a lot the pleasure of the game to be able to handle better the character and to be able to gain powers to handle it better and better)
The semiotics and the feedback for the duration of the power of vision of dreams is perfectly intuitive, it's perfect!
Really bravo it's super cool! <3