In this example, two different variants, differing slightly in the shape of the blades, but both made from 16×16 grid, are shown. Both are based around a puffed, 3D shape in the center which gives the propellers three-dimensional bodies, somewhat similar in appearance to screw propellers used on ships.
Two pictures of the same model, taken almost three years apart, are shown here. I think the comparison shows that my photography skills and gear have improved over time. It’s interesting to re-visit one’s own work in order to check how the style and technique change over time, but since publishing pictures online is my main way of displaying models, photography matters as well.