You may recognize this photo from our Autotrooper review - it really is the same image, just given some more embellishments.
The pose, naturally, comes from the iconic silhouette image of the three Angels. The text is an amalgam of the intro from the show:
Once upon a time there were three beautiful girls who went to the police academy, and they were each assigned very hazardous duties. But I took them away from all that and now they work for me. My name is Charlie.
...and the one from the movies:
Once upon a time there were three very different little girls who grew up to be three very different women with three things in common: they're brilliant, they're beautiful, and they work for me. My name is Charlie.
"Protoforms" are nascent Transformers - babies, so to speak. "Autoboot Camp" is a reference to the Animated episode of the same name. The "Magnus's Angels" logo is the Generation 1 font, with the coloring to match.