for glow you can try Eevee with its glow settings,or if you are useing Cycles you have to use Glow in the compositing.
For the skin,use Subsurfscattering.
SSS looks more real and if you have little pores detail,then without SSS the skin can looks muddy.
If you switch to SSS with the details and the more you increase the SSS, then the details gets blended together,if that makes sence.
i have not tryed the caroonish look, but i know this about my own Emiliy renders.
for the lighting.lighting is very important an can have a drastic different look with different contrast,hard light hard shadows ect.
the pic with the blue hair character has very soft light and shadowing if i am not wrong.this soft light helps to avoid sharp bumps in the skin pores too (if you have bump maps and displacement maps for details active in your mat)
the cartoonish look,if you have a close up shot from the blue hair character,do you see pore details ?if not then maybe the artist dont use it at all.or very subtle maybe,you have to check your reference what you want to achieve.
your screenshots seems to be from kingdome hearts 3,here i did a quick search and found this.