Really cool.
I sadly have no capability to make one myself, so when I need one I have to commission one or build it without welding.
A suggestion, in case you hadn't thought about it already, when you come to the shoulder pieces - don't place them too far apart with a too far gap in between them. The round outer section should be about level with the outer edge of the chest - with a variation of slightly further out or slightly further in, but never fully clear of that outer chest edge. No human has shoulders that wide and the originals were never that wide. I see people place the neck piece down in between them - they should sit above them.