Fantastic artwork though.
The types are Shannxi Y-10, Xian Y-20, Harbin Z-5 and Mil Mi-17.
I'm not sure if these are AU though, as I'm not sure that the Y-20 has a tail turret, and the Harbin Z-6 remained a prototype series and although similar to the Mi-8 was a separate design.
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English Electric Canberra FD
Interwar RN Capital Ships
Super-Darings
Never-Were British Aircraft
Well, surely the Y-10 never mounted the same engines as the Y-20 (or even sport Air Koryo or Vietnam Airlines liveries). I see a lot of 707 components in it, but I honestly do not know how much reverse-engineering or not was involved in it, so it might be a void argument.
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Sources and documentations are the most welcome.
Besides the 'formal' issues, like lack of captions, crediting and the like (1134M is well-known - perhaps even 'notorious' - for omitting these), these drawings are, politely speaking, rather fanciful, and are not the 'true' representations (except of course, of the basic Mi-4 and Mi-8) but rather 'variations on a theme'.