Sexing Maran Chicks Help Please!

[Firsttimematanchicks]

Here is an update on the chicks. They are now 8 weeks old. They were supposed to be 3 cuckoo Maran hens. My question is that are these actually cuckoo Marans or barred rocks? If you up look at the feet the feet they seem yellow? Also is the one with the red crest and wattle in fact a male? They are all so friendly that I’m hoping they’re all female but from the crest and wattle I think I know the answer
Does anyone have an opinion on breed or sex of these?
Thanks again!!