While it's not my cup of tea, it looks generally good. Graphically looks similar to NovelChef (though i haven't read his stuff I've only glanced at the images in passing).
Premise of the story seems okay, Looks okay overall. The only gripe i have is the text dark text and then hitting dark background makes it hard to read. That's where it should have an outline or shadow. Light text should probably have a black shadow, dark text have a white shadow (doesn't need to be big, 2-3 pixels thick probably). Then the words will stand out better while not interfering much with the image.
Something you might to keep backgrounds consistent (unless they are walking around the room) generate the backgrounds, then make characters separately but use a 'white background' as part of the generation. Then in Gimp or your preferred editor make the white transparent, and do layers.