does anyone have a Picture comparing corydoras sex

[DJ-don]

hey guys
does anyone have any pictures comparing their sexes?
like a shot from a above comparing the bodies
or a shot that compares the anal fins

any corydoras would do but preferably Bronze
this is for a talk for our local canberra aquarium society and i need pictures to back up with the power point I'm making

thanks in advance

[DJ-don]

Bump
Btw guys forgot to add you will be acknowledged