Help identifying breed of my young pullets

[adamsclan301]

Hello chicken experts, please help a novice identify the breeds of my young pullets.

Photo 1
these lighter ones I cannot figure out at all:
.
photo 2:
I think silver cuckoo maran on far left? , ???? in middle, and barnevelder on right?

photos 3 and 4:
more photos of the mystery light ones.



photo 5:
far left ???, barnevelder??? in middle, silver cuckoo???, far right mottled java?


photo 6: another photo of mystery light one, these have me stumped


photo 7: can anyone confirm barnvelder?


photo 8: both mottled java????

 

[kazoo1111]

how old are they?

 

[adamsclan301]

I was told they were 5 weeks, when I got them 4 days ago