I finished my game development graduation now in May. My graduation project was a pixel art based beat-em up as we used to have in the 80s and 90s (like double

I finished my game development graduation now in May. My graduation project was a pixel art based beat-em up as we used to have in the 80s and 90s (like double dragon and crime). I loved to work with pixel art and I feel that I can draw (and animate) pretty much everthing that I want/need. However I would like to pursue any kind of graduation in that area, online for sure, but not certifications like udemy, coursera and etc, mainly because I like the loop: learn, homework, feedback, improve work, feedback and so on. I would like to learn "Art" but with Pixel art as main topic. There is such thing?