Yes.
I'm still puzzled by some aspects of the design of the rear of the car. Especially by the way that metallic vane (red) is placed. Someone could explain how that vane works ? It's obviously important in managing the airflow near the tires, but it seems to obstruct the way to the top of the diffuser... Looks like a compromise...
That was the serious part of my post. Now the less serious one:
Personally i would remove the back wall of the 'cross tunnel' (green). The 'ramp' would then 'levitate' above the floor and never touch it, so more air (blue) can flow freely toward the diffuser. And I would move the tunnel (yellow) forward. : P
(Made some mistakes in coloring the yellow tunnel)