The shrimp look like some kind of Macrobrachium. Have you noticed them grow much in the time you've had them? If they kept growing I'd end up worried for the safety of the fish. But well done on incorporating them into a magnificent community.
As impressive as the discus are I think the cories are just as good, looking very healthy and robust.
some more awesome pics and fish as always. those cories are awesome jose, the discus dont try to eat the shrimp? mine are dicks they try to eat anything