Thank you, Patrick. For the inlays as shown above, I used a 22 degree (included, or 11 degree per side) sharp V-bit. For larger inlays, I often use 1/8", 1/16" and even a 1/32" diameter down-cut end mills to clear out most material prior to using the V-bit. I also often use a 30 degree V-bit for inlays that will remain flat, rather than turned.
Cheers!
Richard