I’ve played around quite a bit with this tessellation construct. It started with a sketch a few decades back. I refined it a few years ago, with a single rider dude. Last year I morphed-in a girl to replace half of the riders. I think it works quite well.
To see the original sketch, you can visit My original Mountain Biker #Tessellation from 1997.
In this version there are both girls and boys, in pairs of colours, for the versions that are right side and upside down. I uses symmetry group Pgg.