Looks like a girl to me so far, but it's a little early to tell for sure. Girls have the swept back nicely rounded poofy look. Boys have crazy wild hair look. Girls' poofs will look a little messy for a short time while growing out, you'll probably see that in the next few weeks, but will go back to being smooth and rounded looking, where boys will get wilder.
Both look like girls to me. The topknot has a round shape with round edged feathers. Boys normally have a mohawk shaped topknot with pointy feathers. Very cute
The wattles are a good indicator, and in my experience they come in on the males at about seven weeks. I would say that so far you have a hen, but you will know for sure in a few weeks if the wattles stay small and pale.
Please keep us posted. I have a 3 week old Silver Laced Polish and it seems very difficult to find photos of this breed as they grow. I'd be curious to see how your chicks progress