The images as an addition were quite nice as an atmospheric effect, though I found the chapter pages with the different colours to be even more effective in establishing a mood. The narrative had nice pacing. The end felt like it left me hanging a bit, but it also ended with a very nice final line, so it at least had a sense of closure in that regard.
Some of the DALL-E images had a borderline disturbingness to them, and the ones with random almost-letters was quite strange to look at, making each choice an anticipation. I even went back to choose some different options for different pictures, and was mildly disappointed that some options had the same picture for all of them.