oh i never heard about Jami, ill check it out
and yea i'm not super knowledgeable about art, i only learned it on my own so i only know what i know from books. but yeah the stuff that i know does for sure help, basic drawing skills, color theory, anatomy
pixel art mostly sticks to the same principles. you have added stuff like dithering or antialiasing, but really they are techniques to express the same things you would in painting or drawing. they hust help you do that on a tiny canvas and with very limited colors