Very nice butter! Her colors will come in more as she gets older. My lesser's blushing along her back has been developing awesomely. Her blushing will just get nicer with every shed!
Butters and lessers are the same gene IMHO. I have had 5 clutches from the same male lesser this year and surprise surprise the offspring in each clutch look completely different. Some more like butters, some more like lessers. All from the same male but different females.