Why do they congregate in groups of four?

I give my thesis prospectus presentation today in class, so last night was a scanning frenzy as I tried to get all of my sketches and thumbnails into my PowerPoint file. I thought I would share what I have so far for my thesis comic here as well:

The early stuff:





The male lead, Victor, went through SO MANY CHANGES. I tried looking for inspiration in actors from the 20s, 30s, and 40s, but I can't draw those slicked back hairstyles!! Now he looks like pop star Shaggy, but at least I can draw him consistently.





A side character. He's quite fun to draw.


And more...




This is random, but I like it.