This is a bust of Ironman with the right shoulder thrust forward and the head angled left for a more aggressive posture.
It uses very small supports, for the chin and a couple of other places. Those are straightforward to remove.
You can print the bust at very large sizes, it scales up very well. There will be small supports, nothing special.
Slice with support. They'll be very small, just for the chin and maybe another place or two. The bust can be printed large. Infill at 25%, or more if you want a heavier piece.