First off, I couldn't seem to find the 3 remaining episodes, so I only watched the first 3 of them. The fact that I didn't finish it, really doesn't bother me when usually it would.
Now to be simple, for those who have read the manga maybe it would make a little more sense to them, but I myself, have not read it, so the 4-6 minute shorts were just more like OVA's to me. They didn't really tie into the story nor did they seem to connect to each other.
I know the Machine-Doll series is somewhat Ecchi and inappropriate sometimes so its to be expected in these shorts, however I myself did not quite enjoy all the fan service.