Markers

Not many use markers on here. So I'm pretty pleased that you did.
Your coloring is pretty well done. Good blending, lots of color choices, highlights, the works. But I do notice a lack of shadows though. You should get some in there.

The anatomy for most is pretty good. Some enlarged heads is a bit bothersome, but that seems to be of the style rather than an artist flaw. The hands are a bit different story. That red heads hands in the front could use some work and the blue haired girls wrist seems a little pointy. The girls in the back are too far off for it to really matter though.

Anyway this is a solid piece, congrats
8/10