Jason Brooks otherwise known as HedKandi, produces these fantastic illustrations. I find them to be powerful, energetic and motivating. The girls obviously look amazing and for a lad they kinda represent what your perfect girl would look like, they also create the buzz which I imagine is why HedKandi choose them for there advertisiments. They are unique and have great branding power instantly recognizable to the HedKandi Name for there target audience.
I agree that the tone of voice is perfect for this genre. The message and aspirational look communicated is perfect for the target market and the unique style of illustration makes the work instantly recognisable, and reinforces strong brand recognition.