Would that go under 2D art because a lot of the stuff there doesn't seem like the style.
Either that or does it go underneath the category concept art then?
Here's what I generated from cc0 Artbreeder https://ibb.co/6t1xjmJ
You mean stuff like this? That would be 2D art.
___________________________________________________________________
No mind to think;
No will to break;
No voice to cry suffering.