Mmm, I strongly feel others shouldn’t ask me these things. Largely because I feel most of what I know is mashed up information and techniques I learned over time through trial/replicating my old time fav artists. Regardless if they actually made “sense” at the time. It just looked “cool/flashy” to me. (Which isn’t..TOO BAD. it kept me amused with art and wanting to draw/learn more.)
But seriously, you’ll get there or far beyond what I’m capable of!
Study. Study and learn your art fundamentals. Shapes, Perspective, Light, Shadows, Color, etc (Something I wish I did far sooner and more often. I regret this a bunch.)
Practice, practice more the things you just learned and build up your muscle memory.
It’ll take you a lot further, more effectively and more quickly than guessing everything all out for almost everything you do.