Here is my second model. It is a easy start. It is Hei's mask which is a character in anime Darker Than Black, designed to make cosplay.
Sizes fit well on regular face. Thunder and mouth can be printed seperatly to reduce printing time (in this case you should download 3mf file, because those parts are already seperatly designed on empth mask model but merged together in stl file).
Thickness little bit high (around 3 mm) so it is more resistant and you can sand paper in no worry.
When you place 45 degree face down on slicer and support on, you get most effective and fastest slice (as i experiment).
By the way, knife also designed but not published. (I can if requested)
I am planing to continue design various masks after this and publish freely here, also you can see post-printed versions and more in instagram (you can follow me to support https://www.instagram.com/mask.bearer