Is this shading good? Or should i try a different one, if so what shader should i use?

Doodles i made at school

HAPPY HALLOWEEN!!!!

.

I just get called "dora the explorer"

No context

Mike :P

I know i said i won't make drawings until i learn how to animate but i'm just burned out and want to do something i enjoy

(oc by @Strizh )

WHAT IS THIS OFF BRAND ITEM!!?

Who's he running from?

(W. I. P)