Gold looks like a pullet to me and I'm 80% the blue is too. Your blues tail does not look particularly roo like which I would have expected to see by 10 weeks of age. I take it there is no crowing?
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
I think at 10 weeks that blue is a rooster. My blue hen I couldn't even see her comb and wattles as an adult.