Can anyone post pic's of RIR growth timeline?

[Joe.G]

Hi, i was given four Pullets told they were about 16 Wks, They just look kinda small to me and i am not sure if they are RIR or not. Ihave some adults that I got from a breeder but they were a bit older when I got them. Thanks

 

[Lacey1988]

Here you go...

 

[Joe.G]

How old would you say she is in the last two pic's?