Please disregard the factual tone of my comments (which are opinions based on my own experiences). They are not intended to be negative but are offered in the spirit of constructive criticism only. I'm in the middle of a busy day and reply only because you asked me to check out this thread via PM.
(For future reference, it would be best if you edited your additional questions into the original post rather than replying to yourself 4 times. This prevents excess scrolling for the rest of us.)
First thing I notice is tape. Tape has been the cause of death for many mantises in poorly conceived shipping containers. Hot glue (glue gun) is better.
The sticks look freshly cut. Freshly cut sticks will mold in humid environments.
Also, the angle of the sticks is suitable for climbing but they are rather steep for use as molting surfaces. The mantis may be tempted to molt from them and the steepness combined with the somewhat smooth surface may increase risk factors in the molting process (still the stick is better than the plastic wall of the cage as a molting surface!).
Not sure what the black stuff on your coconut fiber is but the substrate aspect of your cage looks perfect.
Size of cage is a little big for an L2, if anything, but a great improvement over a 10 gallon tank.
Springtails are too small. Use fruit flies.
Ventilation is perfect.
If you want the ultimate habitat for an orchid mantis it is the jungle in Asia
. If you want the next best thing, it's a boring old deli cup with paper towels running up the sides and bottom of the cup and with paper towel glued to the lid and all these surfaces slightly moistened every day per the size of the ventilation gap and your household temperature. You should always have some humidity in there. Aside these two set ups yours is overall a big improvement, but I have to recommend the changes above.
I suspect you'll get a few additional suggestions from other members. I gotta get back to feeding my mantises!
P.s. Super cute animation in your signature line!