2.5/5
I like the overall mood of it. You set that well both with the black and with coloring and the lightning in the background. You also did a nice job of creating depth in that you made the guy in front look like he's actually in front, which is something that I see many people not doing. So, that's good.
The main problem that I see is proportions. The eyes are too large. They should be as wide as the distance between them. Although it's not a big mistake, the eyes are normally the focus of the face, and so they have a lot of attention being drawn to them. Additionally, the noses are drawn as though they're pointing off to the left because your only real defining line is on the left side. I suggest just outlining the bottom part of the nose and defining the rest of the nose structure with shading.
With the exception of Kiyomi, the shoulders all seem to be too wide.
[Review Request Club]