They are not only too pale for New Hamshires, they've got the wrong skin color as well. New Hampshires have yellow skin, and should have black 'columbian' feathering through the hackles, wings, and tail.
Orpingtons have white/pink skin and that pale golden coloring without any black.
The only one that I'm fairly certain of gender is the Barred Rock. Wide white bars, narrow black bars is something that can only happen with males. The others are a bit too young to be sure of. Post some updated pictures in another 3 or 4 weeks to get a more accurate guess for the others.
You've got your chicks a bit mixed up. The first one looks like it's a red barred, and given the comb size, it might be a male. The second is a Silver Laced Wyandotte, too early to sex. Third is a Barred Rock, and given the 'light' barring and big comb for the age, it's male. Fourth looks like a...