Male or Female?

[Sylla]

Good morning! I recently purchased two blue Gouramis and I made the mistake of not learning about how to identify the sex. I think I might have two males but I need some help verifying.

 

[FishFinatic77]

I'm pretty sure that the one in the second picture is a male. The one in the first picture is a bit harder because his dorsal fin is tattered at the end. He kind of looks like a male, but I can't be sure.