Who wanted to start drawing web comics, keep the idea.
Painting together, people’s styles are always inevitably different.
One draws the field of sight of one hero (including the corpse of another hero), the other vice versa.
The world through the eyes of one and the other. The same, say, the phone in the hallway will be a little different when one faces it or the other.
And all this way.
It will be especially funny how they see themselves in the mirror.
The intrigue can be built - the reader will guess that this is and this is the same girl, seen by one and the other.