One little tip (take it if you want, ignore if you dont) on making the body end right. In this one for instance, make the torso in a clipping mask (like just a rectangle that can fit the whole thing). That way the stroke ends like its on a screen rather than seeing the blocky end of the stroke like here. Again, ignore if you really dont care, just thought I'd help out
Now onto the actual Vector, I love Pinkie's expression here. Reminds me of a pic on MemebaseAfterDark that had that scene in a freeze frame and was captioned "I Run This S**t". What's the emote going to represent?
I know I could have clipped the torso, but I saw no real need to. I made this in Inkscape, and Inkscape clipping masks aren't the greatest, so I just left it as is. The emote clips to just her head anyway, so her body wasn't really important.
The emote itself is just called 'Party' so, it represents anything you want it to, I guess!