Box 1: No -
NSG10 which is attached to VM1's subnet blocks RDP (port TCP 3389) to 'Any' which means the port is blocked to all destinations.
Box 2: Yes -
NSG10 blocks ICMP from VNet4 (source 10.10.0.0/16) but it is not blocked from VM2's subnet (VNet1/Subnet2).
Box 3: No -
NSG11 blocks RDP (port TCP 3389) destined for 'VirtualNetwork'. VirtualNetwork is a service tag and means the address space of the virtual network (VNet1) which in this case is 10.1.0.0/16. Therefore, RDP traffic from subnet2 to anywhere else in VNet1 is blocked.