So I did up another 5...
Spiderman, Middle Finger, High Five, Sick, Popcorn
I also fixed the angry face to the appropriate colors. The red wasn't the proper red from flatuicolors.com. Now it is.
Added 5 new smilies...
Smug, Blank Stare, Joyful, Batman, Deadpool
Also changed out a couple which were too alike with kisses:
Just added 5 new smilies:
Puke, Pompus, Bang Head, Sleepy, and Angel.
Pompus and Bang Head were based off XenForo's existing smilies, so again, all cred to them. I just recreated it in flat.