want to do failover between MPLS link and Mikrotik Link

one of my customer having MPLS link between datacenter and branch with both end having cisco router recentely we have installed mikrotik SXT link as a standby. now we want to do failove between MPLS and Mikrotik please see attched diagram please help how to do..

any one… can we do OSPF between these two link. ???

Yes it is possible to set up OSPF with failover. What routing protocol are you using right now?