Printing issues, attach point

Hello,

New in the 3D printing. I try to print this bust in 4cm with Nozzle 0.4 and K2Pro

  • Layer height : 0.16
  • Support : Tree (auto)
  • Support Threshold agle 50%
  • Advanced ; Top Z Distance : 0.14
  • Advanced ; Base Pattern spacing : 2.7
  • Advanced : Top interface layers/Bottom interface layers 3
  • Advanced ; Interface spacing 0.4
  • Advanced ; Support/object XY distance : 0.5
  • Advanced ; Support/object first layer gap : 0.3
  • Tree supports ; Branch Diameter Angle : 4

For all object I didn’t get any problem, perfect but for the bust no.

I have to admit I’m a little bit lost.

Any idea on this,

Thanks,