Hello,
So you are using the point-to-point sub-interfaces everywhere.
I do not see where the issue lies as basically all you need to do from a L2 perspective is build the PVC.
Afterwards you can work on the OSPF Deployment.
So first question would be:
Are you able to ping from the hub to each of the spokes?
From there we can work on the OSPF setup,
Also if possible share the configuration you have so far (Interfaces, OSPF)
Regards,
Julio Carvajal
Senior Network Security and Core Specialist
CCIE #42930, 2xCCNP, JNCIP-SEC