Rough google translation from this gallery
Original is japanese. Not able to read japanese, I had to translate it so let you benefit from it too.

This is totally subjective but I find it really great, and at least for a novice like me, a good start for designing you own characters.

It's forbidden to put external links on the site, but you can very easily find the original with a quick internet search on the title, in english or japanese.

Please, support the author if you find it useful (I found it for 10€, 25$, ... depending on the site)

Enjoy <3