Not only is the circle of shops utterly confusing, but the arrangement of the shop terminals doesn't make much sense either.
Example of Armor Terms.
Why is the Basic Armor not in the same niche as the Advanced & Superior? And why do you make it so hard to read what's on the terminals? I suggest to put all three armor terminals together and make them look like the tradershop terminal. It's a lot easier to read the shops when you can look at them straight, instead of turning your char around all the time, to find the shop you were looking for.
What brings me to the next point: *1
How about a shield or icon in about that area above the terminal, to make it easier to find the different categories? Afterall this is supposed to be the "second starting area" for a new player, so I think this should be less confusing.
And this should apply to Weapons incl Ammunition and Accessoires as well.