Holy shit bros, exceptional digital or real life paiting is one of the hardest things to master. I've been doodling since i was basically a toddler, and been drawing on and off through out my life. I'm 20 right now and basically draw good enough for regular people to say wow and you're amazing but to know that there are artists leagues above me. As an artist you need to learn how anatomy works, every muscle, every bone. You need to learn fashion, how to draw clothes. You need to learn coloring, shadowing, light shine, atmosphere. Even fucking landscapes and backgrounds. It takes so much practise to get to an exceptional level its crazy.