Oh damn, your work is getting better and better! Your progress is very noticeable too, very nice.
You're also drawing and studying almost exactly what I usually study too. It reminds me of my studies.
As long as you keep it up you'll be as good as all of those artists you linked and you'll also be able to add your own personal touch to your work. The amount of drawing you're doing is more than me! So you'll be able to catch up to me, no problem!
I really like the type of Korean art you're into as well, it's halfway between realistic renderings but it's also exaggerated in perspective, proportion, colour, design, and emotion - all the good areas!