NOTE : This isn't really a tutorial, but since there are a few people asking me how i did my shadings crisp-like, so i've decided to show how i did it (altho i'm not sure if i did it in this way myself OwO;; ). So this serves as a pointer for those who might want to try and add a bit of these into their own ways of doing it.

Warning :This is for those who are a mouser only, and that have the time and patience to do cell shading one at a time. And that for those who love to do raw crisp cell shadings, not the soft-type shadings.

Nothing much to be explained, since most of them are already mentioned. But i'd like to point out that if you are doing the highlight on the hair, you can either do it on a new normal layer or just do it on the hair layer itself (which is why i've eyedropped the original color of the hair so that i can just wipe off the mess for the highlight job with the paintbrush). I usually hates to do new layer since it'll usually cover up the lineart below it anyways. But it's up to you to decide. I'm just doing my part in showing on how i did it.
Cell shading style (no dodge tool involved). If it's too crisp, just use the blur tool at the edges. I love the way it is for my part.

Make sure you know where the light source is coming from so your shadings will look and make much more sense. I usually ignored that rule so do not follow my example if you want perfection (i'm pretty much of a person who didn't really care of perfection and usually did it on instinct).

Now you know why my cell shade is crisp and not that wobbly even if i use a mouse. Kind of. :/ since this is only half of my secret. No trick there tho since it's basic.

Link :
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^^ THE LINK IS ABOVE HERE @____@^^

Sample used is from one of my devs.