I was a power plant steam generator expert. One of my favorite activities is 3D modeling with SolidEdge, PTC Creo or SolidWorks. About my picture... this is a Modigliani. Similar to me.. perhaps.
I do my best to leave something good in this world for the others. If anybody disagrees with what I'm doing for free, then that person is free to do things as desired and share the work with everybody else, just like I do, for free... and freedom.