Killing Mister Hagen isn't a minor mistake, it's a breach of a fundamental part of the way in which the League likes to operate.
Semicolon
A mental image. Kon, slumped in front of the television. M'gann, standing in the kitchen. I'm not sure Teekl has linked names to faces yet, or if she can even do that.
There's also a vague impression of Red Tornado, she's not sure where he is and he doesn't smell like a person to her.
Extra linebreak in the middle
Ring, remove my boots and socks
Missing full stop
effect
ever
Uncertain about the punctuation. If it's intentional, leave it.
the creatures point of origin
creature's
when I first picket it up.
picked
its
the Nazi's arcane technology research
Nazis'
American English doesn't use the hyphen.
There's some chemical formula's
formulas, or maybe formulae if the character would say that
All-Star, here and elsewhere; do you want me to highlight each relevant post or do you have it on your own?
choose
Atlanteans, here and elsewhere; same question as above.
Our king sets great store by his Justice League, I've tried to familiarise myself with it's members.
Semicolon
Capitalization on Labs
Let's
Bialyan
Missing full stop.
whiz, unless this is one of your idiosyncrasies.
Usually "extrasensory"
super dense silicone based compound
silicon, unless the statue's surface is nonstick -- I noticed this one before and got a big laugh out of it but that was before I started submitting corrections
sight
Atlantean, here and elsewhere
trust the ring to breath for me
breathe
its
Could've, although since this is dialogue I acknowledge the character could simply be using incorrect grammar
Ring based storage utilises power ring signature as connection point.
Ring-based. Also, the ring's speech pattern doesn't leave out articles most of the time. I would have expected "Ring-based storage utilises the power ring signature as a connection point."
All-Star Squadron, here and elsewhere
"Recognised, Wonder Woman, zero three, Orange Lantern , B, zero six, Teekl, C, zero one, Sphere, C, zero two."
Extra space between "Orange Lantern" and the subsequent comma, and most of the time you don't have a comma between the letter and the number.
Since as far as I can tell Barda doesn't have a DC-canon secret identity name I can't be certain (I might just not be looking in the right place) but it's usually "Barbara" unless the last name is "Streisand" though it's your choice.
all of the areas other major companies
area's
The reason the Frees linked a polite knock at the door to the boom tube in Bialya was that as I had earlier guessed, Diana 'feels' like a New God.
Comma in "was that, as I had"
Luthor
Someone needs to teach them about overpenetration, they're going to shoot each other if she decides to risk making a break away.
Semicolon
Usually buildups or build-ups
Graves's, although Graves' might be acceptable in British English (you'd know better than I would)
yandere, and it's three syllables so that might mess up the response
Bizarro