Your pixel art is awesome! It's even more awesome because of the fact that you do it on an actual NES! I make pixel art too, but mine is never crafted from scratch, I usually just manipulate sprites and backgrounds from old games and pictures I take. Keep doing what you're doing, it's awesome!
Thank you for the message, yo! I got into pixel art after messing around with NES ROMs in high school. You never know where that sort of thing will lead you…! :)