Nheria's style is traditional art. He uses a pen, and watercolors, but does do digital sometimes.
The second is just more opacity to the style.
Every medium though alway will use foundations such as anatomy, perspective, etc, and also for drawing figures like anime and cartoons along with foundations, comes with rules of cartooning, exaggeration, etc. Though how to apply the medium varies between the two. For water color, you would layer and glaze and use the white of the paper. For like non opacity, there are various approches, but the basic way is to layer with the fullness of the paint first.
Well, from my recent works, I'm beginning to observe that certain styles need a certain style of shading. But then, sometimes I see works by other artist with, for example, an anime/manga style and they use realistic coloring! I get more confused, haha.
Right now, I'm studying the how to draw books that I have to try and dissect the effects of coloring in this way and that way does.
For ANY style of drawing, using defined shapes for shading/lighting on the character or figure generally makes the entire piece bold and pop out at you. Using softer coloring techniques tends to make the entire piece soft and more realistic and solid. So, I suppose, depending on what effect you want from the piece, you can choose what to color with. These are just my observations though not sure if the rest of the deviants here are in agreement with me.
Also you probably feel like you're stagnating because you're losing the energy to practice (I know I get those downs too, especially when the coloring tends to get repetitive and tedious). That previous poster offered good advice that you should try something else
Yeah, maybe, I admit that I like to draw female mangas...recently I accepted to make some commissions for friends to "stir the pot"...They asked me to draw stuff that I am not used to, and I challenged myself to do it... Thank, I wasn't aware that making deviations into prints changed anything to the original file...I'll make sure next time not to change it, thanks for the advice!
Well, you can use the blend modes to adjust the colors underneath. It's just easier for me to start with B&W. Multiply covers lighter colors, screen covers darker colors, and overlay seems like a combination of the two. Not really sure what it does :/