Numerals

I have decided to proceed with using a numeral system running from 0 to 3. Now I need a way to represent that system. I have come up with these four systems:

Numerals1

I’ve been staring at these columns for over an hour, trying to decide which one is easiest to grasp. The first column was my first idea, but it has one flaw: the 3-version doesn’t contain any of the background color needed to indicate that this is a modifier. The other columns lack this problem. The last column really emphasizes the triangularity concept. 

I think it’s time for me to do some outside work, get all hot and sweaty, then return to this problem. 

Later
So I spent all day mulling it over and ended up deciding on a completely new set:

Numerals E

I like this set because it lends emphasis to the triangularity concept that I want to underly the entire fantasy.