I have written a technical white paper that is all about using VM Encryption and Veeam Encryption. Lots of detail on how to make everything work and achieve the goal of nothing ever in the clear. The web title of it suggests it only does VMware VM Encryption. But it does both Veeam and VMware encryption. Find it here - https://www.veeam.com/wp-vmware-vm-encryption.html
I hope it helps you be successful with VM and Veeam encryption. Comments or suggestions welcome.