Polish color and gender help

[Bizichick]

I have 2 polish chicks that are about 4 1/2 wks old. Im curious to see if anyone can tell me for sure their color (Im thinking buff) and any ideas on the sex. I thought chick #1 was a roo and chick #2 was a pullet. Now I am starting to think I have both roos. Chick #2 has always been more aggressive and bold. Neither one has any red so far as I can tell and no wattles forming yet. At what age would I see wattles and combs turning red? I am so bad at this stuff, I am realizing I actually have no idea!

I have posted before but didn't get much in the way of replies....hoping for so more opinions this time. I can't keep any roos so wanting to figure it out as early as possible but also because I am obsessing about it! lol
Thanks!

#1-3 chick #1
#4-7 chick #2

 

[ramirezframing]

they look like they are gonna be buffs but the leg color is wrong, it should be slate gray. as for sex, they are a little young yet

 

[Bizichick]

Number #2 actually does have slate/grey legs. hard to see in pic. #1 legs are more beige. Thanks for the reply.