i dont see this is being a bad concept its at least orignal.
darimc you haven't provided any constructive criticisms so please shut up,
I like the whole idea of it being in a dream and as I'm assuming its a puzzle adventure have more going on to confuss the player stuff that will put the player off(such as the idea of the flying boxes which you already have)
decrease the size of the rooms width and increase its height it makes seem more large.
This is all i can think off now so good luck with it

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