Nifty, aren't they?
As I said before, these teen villains are the antithesis of the five founding Teen Titans, and I thought as a team, they'd make a perfect foil to the Titans.
From the top, going left to right (and the Teen Titan they oppose)
Gizmo: A HIVE agent; boy genius; really bad at cursing (Cyborg)
Mammoth: Another HIVE agent; really, really big and strong; limited vocabulary (Beast Boy)
Jinx: Yet another HIVE agent; luck/probability powers; cute, but rude goth girl (Raven)
Red X: Identity unknown; master thief armed with Robin's RedX suit and tech; cares only for himself (Robin)
Blackfire: Starfire's evil older sister; same powers as Starfire; arrogant, cunning, and sex-ay! (Starfire)
Some time in the future, I might do more with this group.