Nice looking rhizo growth showing!
Even after they appear to be fully colonized you may want to wait a few days for the center of the cake to fill in.
I'd give it some more time to see if those half sided jars fill in before deciding to birth all at the same time or not.
I know the P word sucks! Patience is critical.
A couple of things that my old eye sees...
Moisture content - I usually saw some sweating in the jars but you maybe fine.
BRF - I see the verm clearly but I don't see much brown rice flour coating. Again you may be fine depending on the ratio you used. Keep in mind my eyes aren't what they used to be and I haven't done PF style grow in probably 20+ years.
Congrats on a good clean start!