Some random Korean dude used to make illustrations to an audience of 3 digits. Then

Makes a Marine
>2k+
Makes a Gura
>3.5k+
Makes a Calli
>1.7k+

He then moves to HoloX this week and makes a Koyori
>21k+
Makes a very loli Laplus
>56k+
and
>60k+
And a lewd Chloe
>19k+

There is clearly a HUGE market for illustrators that can BLOW UP out of nowhere if they pick the right timing and theme.