>>538266883
if you're new to making games, i'd stick with something tiny, like 8x8 or 16x16
it might seem too small at first, but when creating multiple assets with animations, you'll be able to learn the process pretty quickly, and scale your skills up over time
as you get better, you can increase the canvas size and complexity of your sprites
i think it's important to continue actually making your game while improving your pixel art skills, rather than fully focusing on just the sprites
maybe try making a basic platformer with tiny sprites to get used to the whole process, and then begin working on bigger canvases