Not as described. Each trap needs a vent at the elevation of the trap. So the green pipe can serve as the tub vent, but not the lav vent.To the left is the 2" p-trap for the tub. The yellow highlighted pipe would be the lav drain, then the green pipe would be the vent for both the tub and lav. Would this work?
The lav will need a vent at a san-tee in the wall behind the lav where the lav drain (trap arm) turns downward. And then once the lav is dry vented, it can in turn wet vent the tub in the configuration you've shown. So you could delete the green vent at that point.
How about the WC, how is it vented?