First, amazing work, it's longer and more detailed than I could have hoped for. The art is great, thanks
There are some grammar / sense issues, so here's what I have, others should chime in to script improvements if they have better ideas.
Should be: "good job, boss! I have invited the other bosses, so we can show them the cards and piss them off!"
Should be: "Great, Now let's celebrate!"
Change the russianspy caption to "From Russia with love"
"...I'm here ON behalf of him" (not in)
Change "You're pissed like a pig" to "Abyss Brawler, more like a pissed brawler" or if you really hate that line just write "Drunken idiot..."