Enjoyment 3.5/5 rounded down - I didn't really connect with this one and the central echolocation mechanic wasn't my thing. I'm sorry, it just was more frustrating than engaging for me.
Execution 4/5 - Conveyance is difficult when you're conveying blindness. How much frustration is intended here? IDK.
Sensory 5/5 - For all that this made really good use of sound and everything overall to convey its theme.
Metroidvania 2.5/5 rounded up - About as Metroidvania as an old Sierra game. For me that means not really much, but using the same item in multiple places helps.
Minimalism 5/5 - Nailed the theme and I don't even have to refer to your interpretation to know that you did.
All in all this one really wasn't my thing so much, but it mainly affected the enjoyment category. I don't think I really 'got it' as far as the main point or, ahem, 'vision' if you will. That said, I'll be following if you do more stuff like this (or else-wise) because for all that I would not call this bad by any means.