I see scale modeling as the intersection of art and engineering, and neither can thrive if limited to arbitrary rules which stifle innovation. Also, the manner in which a work of art is displayed can do much to enhance the viewers enjoyment. This, in my opinion, is what your photographs accomplish. So, by all means, carry on as you have. As an aside, I would also enjoy seeing your models photographed from multiple angles and with a less distracting background, in addition to your usual stunning displays.
Wow! that Sears conversion must have had some serious "grunt"; Dual tranies, A two speed rear end And a monster chain reduction! Might not have been fast but I'll bet not much would stop it. Oh, I almost forgot, I really like your model as well. That crosscut saw looks a lot like the one I have hanging in my shop.