The Putto (aka. Dwarf Angels): The putto are the smallest of all angels. Often times, they get confused with faeries by mortal beings.
However, what separates Putto from faeries is that Putto are light elementals, while faeries are of every other elemental (besides light and dark).
Usually, Putto refers to the males of the clan. The females are called Putti.
Ofter times, with human folk, the Putto often get confused with Cherubs. In reality though, Putto and Cherubs are as different as night and day.
The fact that everything is blue with some cool color tones, it does some up with the theme of these angels.
But I never heard of these type of angels before, but they sound interesting.