@joji, if you wanna draw with me on iscribble, let me know :)
I'm trying to get better so I just like to ask questions. Do you prepare a color palette for your drawings before hand or do you just improvise and pick the different shades as you draw?
Also I'm assuming you draw with a tablet. Which tablet are you using? And does it have a screen on it, or do you have to draw on the tablet while looking at the screen?
Color palettes might be helpful, but i am not using any. Sometimes i just use strong contrasts of colors and then pick something inbetween so i can soften the contrast.
I am using an old wacom which i bought for 60 bucks a couple of years ago. So no, unfortunetely no screen on tablet.
I might buy a new one soon within the next months.
Human anatomy, drawing shapes and perspective is a bitch. It's just daily practise and studying what you see.
Sometimes it's hard to translate something complicated like a muscle on to the paper. So you break it down into different shapes/parts. It's like collecting lego parts and at some point you just combine them in different ways.
The thing which gives a quality boost is probably clean linework. Doing confident strokes isn't as simple as it sounds. Well, for clean linework most people use the ctrl + z function until they are fine with the line.