21. I chose this one to test myself rendering details Berkey's style, because I like the composition and the classic frontal 3/4 view that Berkey uses many times and look so good to describe aeronautic and space ship designs.
I think Berkey liked to work more from an illustrator point of view than a designer point of view. I think this is a good example on how he takes a basic composition that he knows will work, he uses a shape that fits the needs of the composition no matter what, even if the main shapes looks weird or even ridiculousat the begining from a design point of view, and then he gives it all integrity trough subdivisions, panelization, design details and realistic lighting.
I think he knew he could make anything look awesome if he was able to find the proper way to render it thus make it believeble.
Wait a minute I forgot the texture! I coming back again.