> I don't know what to take away from the single screenshot. Maybe it would be helpful to record an animated GIF or a screencast to demonstrate it in action?
Agreed.
Vi-style editing of pixel art is a new concept that needs to be demonstrated first and foremost to drive this project.
Kakoune is another software for which the uncommon editing paradigm is one of the main features, and it is presented rather well on their main page [0]. A set of animated demonstrations of the editing paradigm comes before a display of the general appearance of the software in realistic contexts.
[0]: https://kakoune.org/