Hi, welcome to BYC!
I wouldn't be so quick to think boy... Those waddles are actually still pretty small compared to the 2 I had that ended up boys. And many of my girls start to pink up around 11 weeks or so. But also the pink can be deceptive as in flushing or excitement. Even coming from the same hatchery may have different parent so different development rates. But even from the same parents you can get the same thing.
With laced varieties, the lacing on the top of the wing is the dead give away.

Girls will have nice distinct lacing while boys will have some barring. See how the lacing is indiscernible on the top of the wing on this boy? Perfect example!
As far as I can tell, the lacing on yours looks the same as each other. Though it's not as perfectly clear as I like to see it, I think your Wyandottes are the same gender. And I will go pout on a limb and say in my experience, I would call them pullets.
One more thing.. ALL chickens have tiny spur bumps and *some* girls (mostly Mediterranean breeds) will grow spurs and hens even crow, though it isn't super common. Boys even egg sing. Sometimes with the hens, other times when they get startled!

Also the top one, most of the comb looks red, but near the nostrils still looks fairly flesh covered.
A standing side shot that shows saddle/tail feathers can also help get a more accurate assessment if they happen to be coming in at all.
Willing to be incorrect (notice I didn't say wrong

) but hope I'm right this time!
