I'm like 80% sure these two are boys, but can anyone that's more experienced than me confirm? I have one more that I'm not sure on, but it was picked on, so it tends to be a bit more shy. I'll try to grab a picture of it tomorrow.
Can't see the 1st one's legs but the second looks very yellow- another roo clue ... possible it's just completely different lines from my hatchery gals, but I'd agree you've probably got 2 boys.
Here's a group of pullets in the 15-16 week old range for reference: