Perspective can be a bitch, yeah. It's part of why my usual style went so cartoony. When I'm not being lazy, my line drawings can get pretty good, though, and I'm learning that tricksy coloring can compensate for a lot of drawing 'errors'. ;)

When I do cards for x-tice and birthdays (I get busy and I skip some years), I usually make my own. I think it's fun, but I wouldn't call what I do 'sculpture'. More arts-and-craftsy. But I do love things that pop-up. It's a holdover from childhood, I think.

Also, Metals Sculpture? Wow. I grew up around welders, and the things still scare me. You are badass, indeed.