Pretty rough, overall.
Heart is oddly pinched at the bottom.
The lineart is inconsistent- there's black, there's colored, there's parts with no lines...it doesn't work.
There's no point in adding a trigger warning.
The thumbnail you used also completely defeated the point of said warning anyway, as the vomit is completely visible in it.

It is definitely South Park, and recognizable as such, but it needs work overall.