Quadricycle: the Sibellule

Hello everyone, here is a model I’ve just finished: 
a custom-built quadricycle nicknamed "La Sibellule." 
It features front-wheel drive and rear-wheel steering. Propulsion is provided by the handlebars, 
which act like a rowing mechanism: when the rider pushes the handlebars forward, 
they drive the chain and propel the vehicle. Upon release, a spring automatically returns them to the starting position 
(it is an older system, similar in principle to the self-propelled scooters of my childhood). 
The pedal assembly is equipped with a freewheel sprocket to enable the propulsion system to function. 
Steering is controlled by a lever located to the rider's left, alongside the central frame rail, 
while braking is handled by a second lever on the right. A dynamo mounted on the front wheel powers the headlight and taillights. 
This original creation reimagines a propulsion method that has largely vanished today 
and draws inspiration from mechanical solutions characteristic of the 20th century. 
I hope you enjoy it.  Oups!! The background is my yard—admittedly a bit of a mess.