Artist Colin Darke can draw with either hand.
And not just either, both simultaneously.
And not just both simultaneously, both simultaneously drawing different parts of the same thing.
More of his time lapses here.
Tokyo-based artist Thomas Romain’s two sons like to create their own fantastical characters, to which dad then applies his own professional drawing skills, years of experience and superior collection of pens and inks – surpassing the original drawings in every way, creating valuable exposure for himself and exposing his hapless offspring as cack-handed amateurs.
Fairly sure that’s what’s going on here.