Help sex GT and JD!

[waterPOLO]

I'm not sure if you can tell the sex from these yet, I'm thinking you can, but they are still young so...I'm here for help!

My guesses are the JD is female and GT is male but not sure.
Aaand a picture of my bluegill just for fun

 

[ScoobyRacing03]

I'd guess male for the JD not sure on the GT