it's very early to tell much at this age. It looks like it has some ISA Brown, (Red Star, Production Red, Cinnamon Queen, etc.) in it. That could be the source of the red. I had one with some uneven color. It took a while to confirm female, but even though it was uneven, it wasn't really dark. Keep an eye out for darker areas that are splotchy -especially if they look more red than brown.
Here was my ?able, but she turned out female.
5 wks
8wks
20wks