They are looking very nice.
I have grown GDP for the last couple of years, its my favourite smoke and edible. Doesn't have too much couch lock, but certainly kills the pain in my body, and helps with sleep.
Mine have never looked that frosty or shape of bud and I have only seen color on one plant I grew outside. Mine seem to be more compact and egg shaped. I struggle to get large colas, apart from on the main stem, the rest are just golf ball sized buds mostly.