Ok so... I don't think this would be substantial enough to make a thread in the mods forum so... Here's a face-swap mod I made specifically for Namu:
link here (Extract the 'www' folder into your root Paccsu folder and click 'yes' to replace files. I advise you back up the folder beforehand just in case)
Just to make sure this isn't misinterpreted, I think this is such a good game and the art is great; this isn't some asinine attempt at an "art fix", it's just a two-day pet project where I patched over the area of Namu's eyes in my 'cutesy' style because "why not?" It took me a little while to do and so I wagered it'd be worth sharing around.
Attached one of the game over images and the idle standing one as examples, but it should replace every instance of Namu's face and leave everything else untouched.