Ooh lovely birds I don't have any toulbant but wouldn't mind adding some to my flock!! Not sure on the cockerels bit they are a nightmare to sex I have given up and now just wait for a crow or an egg.
My splash polish had a bright red comb/wattle area by the time he was 6 weeks old and his crest feathers are super messy looking. My husband has named him Einstein. Not sure if you can clearly see him in the background. I think he is about 8 weeks in this picture. I vote girls
I see girls also. My polish roosters had wattles at 4 weeks and combs by 5 weeks, its still a bit early on them though, so update in a couple of weeks.