Other than the E-O Tech being mounted too far forward, (It should not be contacting the Delta Ring), I cannot find a thing wrong with that photograph. Bill T.
The Eotech may be forward so she gets the right eye relief (I don't know if that matters with them ) because her arms are short at that age she probably keeps the stock collapsed.
The last pic of the father and son reminds me of my dad when i was 6yrs old. He taught me that guns are fun but they are not toys, he also taught me that misuse if firearms gets people killed.