It seems to me that the CNC carving would be the “easy” part, compared to modeling this from pictures alone which is probably a huge undertaking. I guess it depends how true to the real thing you want this to be. You could probably find patterns of vines/leaves that look like this, and carefully assemble them to make something that looks similar. But replicating exactly these patterns…sounds difficult indeed.
People with ambitious wood carving projects (like this one from @wb9tpg, or this from @RichCournoyer) can probably share a better grounded opinion on how doable this is.
It’s a wonderful project to have in any case, good luck !