Unfortunately, I don't think those jars look good either. Sorry about that as I can see you've been waiting patiently on these for a month.
The jars have different cubensis varieties, so we know they didn't all come from the same agar plate. So, either all the plates were contaminated, or the contamination came in later, or both.
To me, bacteria on agar has a filmy or slimy look. It usually starts as little dots under where your hand was when you inoculated the plate. If you used a MS syringe and put just a drop of spore water on the plate, there might be a filmy bacteria before the spores even germinate.
What grain spawn is it? If your spawn is too wet when you put it in the jar, it favors bacterial growth. Ideally the grains should be dry to the touch. Also if your grain is overcooked and a lot of it is split open so the inner starchy goodness is exposed, that also adds to the risk of contamination. I've just started using horse oats which are much dirtier than people oats, and I've found that giving them a good rinse in hot water both before and after hydrating helps them look a lot cleaner.
When inoculating with agar (or doing a g2g transfer), shake the hell out of the jar after you put the agar in. You want to get as much grain to come in contact with the agar as possible, so that in a few days you start seeing growth everywhere instead of just from that one spot. The faster the mycelium colonizes your jars the better.
Do you have pics of the agar plates you used for these jars?