In this latest pic, the one on the right is looking more male, beyond the dorsal color, you've got a better angle which shows the profile is more masculine.
And the female (on the left) is starting to color up nicely, and we can see the contrast in her profile.
To get good info, it's all about the way the photo is taken.
Shadows sometimes show thru fins as pigment, which can be deceiving, and getting a correct angle really helps with profile diagnosis.