First of all: oh my god, this thing is so stylish? Definite jam winner material at least in terms of production values; the attention to detail is amazing, and the entire medium is explored and used. A very jarring background image showing real-life humans might be the only visual misstep, as painting furries over photos is relatively common. It really feels like an oversight.
Though unfinished, the story's patient pacing and its willingness to go for big swings already show a confidence in storytelling I always appreciate. The direction is also just so sharp; visuals are always used with purpose and to emphasize what the narrative is saying. Something feeling like a cheap gimmick or too melodramatic is a risk when you have this much stuff going on, but One More Light remains steadily tasteful and controlled. The only thing I'm not crazy about is the amount of pauses – less could be more in this case, especially when the numerous animations already stop the flow of text every so often.
The prose is pretty good, too, despite typos and such being common enough to betray the fact that the game was made under a strict time limit. Character voices come with a sense of grounded realism, and I think the narration avoids feeling too flowery despite playing with a lot of different images and metaphors. The writing is pleasant to read all around and clearly pulling its own weight.
What else is there to say – very good, and very impressive for a game jam project. I have to confess to having liked the moody opening slightly more than the VN going all plot mode, but don't count that as me not being excited for more.