EE's can look anyway really since they are just mixed breeds. I have some EE's without the dark legs and some with. EE's are just chickens where one of the parents had a blue egg gene and won't always lay a blue or green egg
I heard someone talk about this cross and they said it can be hard to sex them and you really have to know what the chicks are supposed to look like. I would say pictures 3 and 4 look like they have the white dot so I would guess roos for them.