In my experience my dominant guys have been more red than more submissive ones, but that might have just been a concidence not some thing you can tell by 🤷♀️
Sorry I'm really not sure :oops:
Wish I could be more help!
The first one is 100% a boy, the second from what i can tell (I'm not very good with pictures especially on whiter birds) might be boy based on butt, but the comb is lighter so could be girl. @black_cat knows better than I so I would listen to their word over mine.