She does have really pretty coloring, I agree. That first pic is enhanced via Instagram so the hues are pretty visible...when the sun hits her just right she's got some greenish blue hues to her feathers. Mixed in with the various browns and white and she's quite a stunning rainbow! :)
I have two Speckled Sussex hens that are fairly tied for the head hen spot most of the time. Their names are Herby and Crazy. I think if I were to name just one Head Honcho it would be Crazy...she can be pushiest at times.
I t looks like Crazy is the farthest one...so hard to tell in photos but...