urban apex
i recommend this video
#Art style
earnest helm
Honestly just draw often and at some point you will end up sticking with an art style
royal hinge
You can also explore other artist's art styles, your art style can be inspired by other's art styles as long as you don't copy it entirely. Adding your own spin to it is what makes it your own :)
low mural
My theory is
artstyle is seprate into 1. shapes 2. propotions 3. detail(shading style, brush work)
like how the tv show arcane exaggerates the shape of the nose and jaw
and anime styles take away nose shapes and use shading and a small triangle instead