Great pictures. I love seeing bees and other (good) insects in flowers.
I've currently got one foxglove that a group of those giant black bee's are crazy about. The flower stalk leans from left to right like a metronome when they're all feasting on it at the same time...back and forth, back and forth. Tried taking pictures of it but they came out blurry. Why they like that one particular plant is a mystery...they don't seem to want to be bothered with the other foxgloves in the garden.