The second part here has a noticeably different artstyle, looking more like the first season. I wonder if it's because Yoshinari himself was more hands-on here.
>>281697250
That's the biggest problem with digital 2D animation, there's no source you can upscale (unlike with cel animation and 3D animation). You can only have whatever res it was mastered at, and maybe hope that AI upscalers will become good enough to fix it.