About scanning a bust with a turntable and a rotating camera.

I think you are almost done. I think the last problem is, you have a very featureless object. Try to raise the alignment settings like in this post:

https://support.capturingreality.com/hc/en-us/community/posts/115001363732-Align-setting

Also consider to use Markes placed onto the rotating part of your construction like:

https://support.capturingreality.com/hc/en-us/articles/360003869672-How-to-use-Detect-Markers-Tool-experimental-version-

 

Also try to use the forum search here, it helped me a lot when i having any problems with RC. There are many posts like yours.