>>81045835They actually have.
The thing about Homestuck, is that the character design are very basic: it's basically the same template with some facial feature and hair swapping.
Because of this, there is a lot of room for interpretation.
You complain that they share no design element, yet you are fully aware that this isn't the case.
Even without any context, not only would you immediately know those are homestuck characters, but that they are effectively Jade, Rose, Roxy and Jane.
Fuck, Jane is almost on-point.
You don't like this design, sure, but they are definitely representing the HS chracters, precisely because Hussie's minimal design make each of the few distinctive design for each character very noticeable.
stuck to distinctive design to any design twist of your choice, and you can immediately seen what character it's intended to be and that they are from Homestuck.
In a way, it's Genius. Hussie made character design that is pre-diposed to be fan-arted.