Yeah, the females have smaller diamond shaped wattles and crest. Usually, the wattles lay flat on females and stick out sideways on males, but, males with flat wattles are not rare(looks like you have some of those).. some males even have one wattle that sticks out and the other laying flat. Some females' wattles do try to cup and stick out a little but they stay small.
When the females are laying the sexes behave different. The males often raise their wings sort of like sails/swans do and make a lot of dashing runs at other birds. Females seem more 'submissive' and also they develop a big bump above their tail. So at peak breeding the males body profile looks "round" to his wing raising and the females look "lumpy" due to keeping wings close to her body and developing that bump above tail.
One more thing, males seem to have a much bigger fleshy nose than females.. not sure how consistent that is though.
I agree both in the second picture are males- their wattles are big and stick out sideways. Third pic, hen on right and probably a male with flat wattles on left. Bottom two are pics of same hen.