Sturmgeschütz III

This is a model of a common German tank from World War 2, which has been evolving for over a year, and quite accurately sums up the progress I've made in CAD. It is not for school or work, but a hobby. Don't expect much.
The first version is Stug A, from one of my first designs, and it remained vastly unchanged till 2016, when I made a new version, rather unimaginatively named Stug A New. The newest version in this project is the Stug 3, a complete redesign.