Hello I recently purchased a few dwarf gourami at a local pet store and I was wondering if anyone could help me in identifying their genders.

I know the one with striping is a male, but I'm not sure if the other is a female or a male of another species / hybrid.

this one seems like a male:

This one I need help with:

Thank you very much for your responses.
I will check back tonight when I get home from work.