Bolivian ram females don't have a pink belly, that's GBRs (from your other thread in 'discussion')
It's not clear on your pics, but do I see the hint of a breeding tube showing in the second pic? If it is visible in the flesh, a female has a wide breeding tube the same width all the way down. The male's breeding tube is smaller and goes to a point. I can't tell from the pic I'm afraid, just that there's a smudge in the right place.