viability: Ok i understand that the cutscene is broken now my bad. its definately viable. i think having some sort of collider that stops you going of screen would be good since its a bit awkward.
presentation: the manual resolution you set makes the itch page scale really weird and in a way that is not good. i have to change my browser resolution in order to have the entire game on screen...
theme: none of the art is in so i feel like i can't really give any thoughts on that sorry!
engagement: i understand this is the skeleton, and i do think it will benefit from having the art in, but i also feel like there isn't really anything to explore or other interesting elements that warrent the map to be as big as it is with as many ways to go, since its a fetchquest game as it stands. some kind of enemy or other objective might help. i know theres also some dialogue and story as well so maybe that too!