I’m so glad you like my art! Here’s my general process:
First I do a basic sketch (I personally prefer doing pencil sketches, but you can do this step digitally if you’d like).
Slap on a background color (at this point, the specific hue doesn’t matter; just use a color that defines the general tone of your piece).
Flat color with some minor shading (under lineart).
Add a bit more shade and blend some bits together.
Better define your shapes with some shading and lighting.
Overlay a color to bring the colors more together (it’s best to use something close to your background color). Fuse overlay with colored layer. NOTE: You should alter the opacity of the overlay layer until it looks nice to you.
Fuse the lineart and colored layers together, Use the same color as before but on luminosity instead of overlay. Fuse luminosity layer with your lineart/colored layer. NOTE: Same as before with the opacity thing.
Use the same color AGAIN, but with screen instead. Again, fuse the two layers when the color is to your satisfaction. NOTE: Opacity…yeah…
This effect is for specifically this piece, but if you want to add shading or lighting to a background you should use overlay with some opacity adjustments
Just clean it up a bit and add some more details.
More clean up.
EVEN MORE CLEAN UP.
Make the shading/lighting more distinct with overlay.
Add a paper texture, adjust the colors, and you’re done!
I know this tutorial isn’t incredibly detailed, but if you need help on any specific step, I’d be happy to help!